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Support for negotiation and receiption of Cisco's RTP DTMF
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@43597 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Paul Cadach
@@ -184,7 +184,7 @@ struct oh323_pvt {
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int peercapability; /* Capabilities learned from peer */
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int jointcapability; /* Common capabilities for local and remote side */
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struct ast_codec_pref peer_prefs; /* Preferenced list of codecs which remote side supports */
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int dtmf_pt; /* Payload code used for RFC2833 messages */
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int dtmf_pt[2]; /* Payload code used for RFC2833/CISCO messages */
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int curDTMF; /* DTMF tone being generated to Asterisk side */
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int DTMFsched; /* Scheduler descriptor for DTMF */
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int update_rtp_info; /* Configuration of fd's array is pending */
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@@ -515,7 +515,9 @@ static int oh323_digit_begin(struct ast_channel *c, char digit)
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return -1;
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}
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ast_mutex_lock(&pvt->lock);
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if (pvt->rtp && (pvt->options.dtmfmode & H323_DTMF_RFC2833) && (pvt->dtmf_pt > 0)) {
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if (pvt->rtp &&
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(((pvt->options.dtmfmode & H323_DTMF_RFC2833) && pvt->dtmf_pt[0])
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/*|| ((pvt->options.dtmfmode & H323_DTMF_CISCO) && pvt->dtmf_pt[1]))*/)) {
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/* out-of-band DTMF */
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if (h323debug) {
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ast_log(LOG_DTMF, "Begin sending out-of-band digit %c on %s\n", digit, c->name);
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@@ -554,7 +556,7 @@ static int oh323_digit_end(struct ast_channel *c, char digit)
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return -1;
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}
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ast_mutex_lock(&pvt->lock);
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if (pvt->rtp && (pvt->options.dtmfmode & H323_DTMF_RFC2833) && (pvt->dtmf_pt > 0)) {
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if (pvt->rtp && (pvt->options.dtmfmode & H323_DTMF_RFC2833) && ((pvt->dtmf_pt[0] > 0) || (pvt->dtmf_pt[0] > 0))) {
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/* out-of-band DTMF */
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if (h323debug) {
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ast_log(LOG_DTMF, "End sending out-of-band digit %c on %s\n", digit, c->name);
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@@ -644,7 +646,7 @@ static int oh323_call(struct ast_channel *c, char *dest, int timeout)
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pvt->outgoing = 1;
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if (h323debug)
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ast_log(LOG_DEBUG, "Placing outgoing call to %s, %d\n", called_addr, pvt->options.dtmfcodec);
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ast_log(LOG_DEBUG, "Placing outgoing call to %s, %d/%d\n", called_addr, pvt->options.dtmfcodec[0], pvt->options.dtmfcodec[1]);
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ast_mutex_unlock(&pvt->lock);
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res = h323_make_call(called_addr, &(pvt->cd), &pvt->options);
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if (res) {
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@@ -757,7 +759,7 @@ static struct ast_frame *oh323_rtp_read(struct oh323_pvt *pvt)
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f = ast_rtp_read(pvt->rtp);
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/* Don't send RFC2833 if we're not supposed to */
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if (f && (f->frametype == AST_FRAME_DTMF) && !(pvt->options.dtmfmode & H323_DTMF_RFC2833)) {
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if (f && (f->frametype == AST_FRAME_DTMF) && !(pvt->options.dtmfmode & (H323_DTMF_RFC2833 | H323_DTMF_CISCO))) {
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return &ast_null_frame;
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}
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if (pvt->owner) {
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@@ -979,8 +981,10 @@ static int __oh323_rtp_create(struct oh323_pvt *pvt)
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ast_log(LOG_DEBUG, "Setting NAT on RTP to %d\n", pvt->options.nat);
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ast_rtp_setnat(pvt->rtp, pvt->options.nat);
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if (pvt->dtmf_pt > 0)
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ast_rtp_set_rtpmap_type(pvt->rtp, pvt->dtmf_pt, "audio", "telephone-event", 0);
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if (pvt->dtmf_pt[0] > 0)
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ast_rtp_set_rtpmap_type(pvt->rtp, pvt->dtmf_pt[0], "audio", "telephone-event", 0);
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if (pvt->dtmf_pt[1] > 0)
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ast_rtp_set_rtpmap_type(pvt->rtp, pvt->dtmf_pt[1], "audio", "cisco-telephone-event", 0);
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if (pvt->peercapability)
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ast_rtp_codec_setpref(pvt->rtp, &pvt->peer_prefs);
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@@ -1121,7 +1125,7 @@ static struct oh323_pvt *oh323_alloc(int callid)
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}
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memcpy(&pvt->options, &global_options, sizeof(pvt->options));
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pvt->jointcapability = pvt->options.capability;
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if (pvt->options.dtmfmode & H323_DTMF_RFC2833) {
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if (pvt->options.dtmfmode & (H323_DTMF_RFC2833 | H323_DTMF_CISCO)) {
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pvt->nonCodecCapability |= AST_RTP_DTMF;
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} else {
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pvt->nonCodecCapability &= ~AST_RTP_DTMF;
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@@ -1263,18 +1267,28 @@ static int update_common_options(struct ast_variable *v, struct call_options *op
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options->dtmfmode |= H323_DTMF_INBAND;
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} else if (!strcasecmp(val, "rfc2833")) {
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options->dtmfmode |= H323_DTMF_RFC2833;
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if (!opt)
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options->dtmfcodec = H323_DTMF_RFC2833_PT;
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else if ((tmp >= 96) && (tmp < 128))
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options->dtmfcodec = tmp;
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else {
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options->dtmfcodec = H323_DTMF_RFC2833_PT;
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ast_log(LOG_WARNING, "Unknown rfc2833 payload %s specified at line %d, using default %d\n", opt, v->lineno, options->dtmfcodec);
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if (!opt) {
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options->dtmfcodec[0] = H323_DTMF_RFC2833_PT;
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} else if ((tmp >= 96) && (tmp < 128)) {
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options->dtmfcodec[0] = tmp;
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} else {
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options->dtmfcodec[0] = H323_DTMF_RFC2833_PT;
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ast_log(LOG_WARNING, "Unknown rfc2833 payload %s specified at line %d, using default %d\n", opt, v->lineno, options->dtmfcodec[0]);
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}
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} else if (!strcasecmp(val, "cisco")) {
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options->dtmfmode |= H323_DTMF_CISCO;
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if (!opt) {
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options->dtmfcodec[1] = H323_DTMF_CISCO_PT;
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} else if ((tmp >= 96) && (tmp < 128)) {
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options->dtmfcodec[1] = tmp;
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} else {
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options->dtmfcodec[1] = H323_DTMF_CISCO_PT;
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ast_log(LOG_WARNING, "Unknown Cisco DTMF payload %s specified at line %d, using default %d\n", opt, v->lineno, options->dtmfcodec[1]);
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}
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} else if (!strcasecmp(v->value, "h245-signal")) {
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options->dtmfmode |= H323_DTMF_SIGNAL;
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} else {
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ast_log(LOG_WARNING, "Unknown dtmf mode '%s', using rfc2833\n", v->value);
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options->dtmfmode |= H323_DTMF_RFC2833;
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options->dtmfcodec = H323_DTMF_RFC2833_PT;
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ast_log(LOG_WARNING, "Unknown dtmf mode '%s' at line %d\n", v->value, v->lineno);
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}
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} else if (!strcasecmp(v->name, "dtmfcodec")) {
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ast_log(LOG_NOTICE, "Option %s at line %d is deprecated. Use dtmfmode=rfc2833[:<payload>] instead.\n", v->name, v->lineno);
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@@ -1282,7 +1296,7 @@ static int update_common_options(struct ast_variable *v, struct call_options *op
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if (tmp < 96)
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ast_log(LOG_WARNING, "Invalid %s value %s at line %d\n", v->name, v->value, v->lineno);
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else
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options->dtmfcodec = tmp;
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options->dtmfcodec[0] = tmp;
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} else if (!strcasecmp(v->name, "bridge")) {
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options->bridge = ast_true(v->value);
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} else if (!strcasecmp(v->name, "nat")) {
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@@ -2367,21 +2381,21 @@ static void hangup_connection(unsigned int call_reference, const char *token, in
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ast_mutex_unlock(&pvt->lock);
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}
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static void set_dtmf_payload(unsigned call_reference, const char *token, int payload)
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static void set_dtmf_payload(unsigned call_reference, const char *token, int payload, int is_cisco)
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{
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struct oh323_pvt *pvt;
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if (h323debug)
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ast_log(LOG_DEBUG, "Setting DTMF payload to %d on %s\n", payload, token);
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ast_log(LOG_DEBUG, "Setting %s DTMF payload to %d on %s\n", (is_cisco ? "Cisco" : "RFC2833"), payload, token);
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pvt = find_call_locked(call_reference, token);
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if (!pvt) {
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return;
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}
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if (pvt->rtp) {
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ast_rtp_set_rtpmap_type(pvt->rtp, payload, "audio", "telephone-event", 0);
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ast_rtp_set_rtpmap_type(pvt->rtp, payload, "audio", (is_cisco ? "cisco-telephone-event" : "telephone-event"), 0);
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}
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pvt->dtmf_pt = payload;
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pvt->dtmf_pt[is_cisco ? 1 : 0] = payload;
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ast_mutex_unlock(&pvt->lock);
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if (h323debug)
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ast_log(LOG_DEBUG, "DTMF payload on %s set to %d\n", token, payload);
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@@ -2750,7 +2764,8 @@ static int reload_config(int is_reload)
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memset(&global_options, 0, sizeof(global_options));
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global_options.fastStart = 1;
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global_options.h245Tunneling = 1;
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global_options.dtmfcodec = H323_DTMF_RFC2833_PT;
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global_options.dtmfcodec[0] = H323_DTMF_RFC2833_PT;
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global_options.dtmfcodec[1] = H323_DTMF_CISCO_PT;
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global_options.dtmfmode = 0;
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global_options.capability = GLOBAL_CAPABILITY;
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global_options.bridge = 1; /* Do native bridging by default */
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@@ -533,7 +533,7 @@ MyH323Connection::MyH323Connection(MyH323EndPoint & ep, unsigned callReference,
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bridging = FALSE;
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progressSetup = progressAlert = 0;
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dtmfMode = 0;
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dtmfCodec = (RTP_DataFrame::PayloadTypes)0;
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dtmfCodec[0] = dtmfCodec[1] = (RTP_DataFrame::PayloadTypes)0;
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redirect_reason = -1;
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#ifdef TUNNELLING
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tunnelOptions = remoteTunnelOptions = 0;
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@@ -664,7 +664,8 @@ void MyH323Connection::SetCallOptions(void *o, BOOL isIncoming)
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progressSetup = opts->progress_setup;
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progressAlert = opts->progress_alert;
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dtmfCodec = (RTP_DataFrame::PayloadTypes)opts->dtmfcodec;
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dtmfCodec[0] = (RTP_DataFrame::PayloadTypes)opts->dtmfcodec[0];
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dtmfCodec[1] = (RTP_DataFrame::PayloadTypes)opts->dtmfcodec[1];
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dtmfMode = opts->dtmfmode;
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if (isIncoming) {
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@@ -1213,7 +1214,8 @@ void MyH323Connection::SendUserInputTone(char tone, unsigned duration, unsigned
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void MyH323Connection::OnUserInputTone(char tone, unsigned duration, unsigned logicalChannel, unsigned rtpTimestamp)
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{
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if ((dtmfMode & H323_DTMF_RFC2833)) {
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/* Why we should check this? */
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if ((dtmfMode & (H323_DTMF_CISCO | H323_DTMF_RFC2833 | H323_DTMF_SIGNAL)) != 0) {
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if (h323debug) {
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cout << "\t-- Received user input tone (" << tone << ") from remote" << endl;
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}
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@@ -1243,10 +1245,10 @@ void MyH323Connection::OnSendCapabilitySet(H245_TerminalCapabilitySet & pdu)
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H245_Capability & cap = entry.m_capability;
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if (cap.GetTag() == H245_Capability::e_receiveRTPAudioTelephonyEventCapability) {
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H245_AudioTelephonyEventCapability & atec = cap;
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atec.m_dynamicRTPPayloadType = dtmfCodec;
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// on_set_rfc2833_payload(GetCallReference(), (const char *)GetCallToken(), (int)dtmfCodec);
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atec.m_dynamicRTPPayloadType = dtmfCodec[0];
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// on_set_rfc2833_payload(GetCallReference(), (const char *)GetCallToken(), (int)dtmfCodec[0]);
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if (h323debug) {
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cout << "\t-- Transmitting RFC2833 on payload " <<
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cout << "\t-- Receiving RFC2833 on payload " <<
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atec.m_dynamicRTPPayloadType << endl;
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}
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}
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@@ -1299,21 +1301,12 @@ BOOL MyH323Connection::OnReceivedCapabilitySet(const H323Capabilities & remoteCa
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};
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#endif
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struct ast_codec_pref prefs;
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RTP_DataFrame::PayloadTypes pt;
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if (!H323Connection::OnReceivedCapabilitySet(remoteCaps, muxCap, reject)) {
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return FALSE;
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}
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const H323Capability * cap = remoteCaps.FindCapability(H323_UserInputCapability::SubTypeNames[H323_UserInputCapability::SignalToneRFC2833]);
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if (cap != NULL) {
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RTP_DataFrame::PayloadTypes pt = ((H323_UserInputCapability*)cap)->GetPayloadType();
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on_set_rfc2833_payload(GetCallReference(), (const char *)GetCallToken(), (int)pt);
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if ((dtmfMode & H323_DTMF_RFC2833) && (sendUserInputMode == SendUserInputAsTone))
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sendUserInputMode = SendUserInputAsInlineRFC2833;
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if (h323debug) {
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cout << "\t-- Inbound RFC2833 on payload " << pt << endl;
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}
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}
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memset(&prefs, 0, sizeof(prefs));
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int peer_capabilities = 0;
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for (int i = 0; i < remoteCapabilities.GetSize(); ++i) {
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@@ -1346,6 +1339,32 @@ BOOL MyH323Connection::OnReceivedCapabilitySet(const H323Capabilities & remoteCa
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}
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}
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break;
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case H323Capability::e_Data:
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if (!strcmp((const char *)remoteCapabilities[i].GetFormatName(), CISCO_DTMF_RELAY)) {
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pt = remoteCapabilities[i].GetPayloadType();
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if ((dtmfMode & H323_DTMF_CISCO) != 0) {
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on_set_rfc2833_payload(GetCallReference(), (const char *)GetCallToken(), (int)pt, 1);
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// if (sendUserInputMode == SendUserInputAsTone)
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// sendUserInputMode = SendUserInputAsInlineRFC2833;
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}
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if (h323debug) {
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cout << "\t-- Outbound Cisco RTP DTMF on payload " << pt << endl;
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}
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}
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break;
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case H323Capability::e_UserInput:
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if (!strcmp((const char *)remoteCapabilities[i].GetFormatName(), H323_UserInputCapability::SubTypeNames[H323_UserInputCapability::SignalToneRFC2833])) {
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pt = remoteCapabilities[i].GetPayloadType();
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if ((dtmfMode & H323_DTMF_RFC2833) != 0) {
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on_set_rfc2833_payload(GetCallReference(), (const char *)GetCallToken(), (int)pt, 0);
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// if (sendUserInputMode == SendUserInputAsTone)
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// sendUserInputMode = SendUserInputAsInlineRFC2833;
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}
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if (h323debug) {
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cout << "\t-- Outbound RFC2833 on payload " << pt << endl;
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}
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}
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break;
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#if 0
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case H323Capability::e_Video:
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for (int x = 0; vcodecs[x].asterisk_codec > 0; ++x) {
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@@ -1416,7 +1435,7 @@ BOOL MyH323Connection::OnStartLogicalChannel(H323Channel & channel)
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return connectionState != ShuttingDownConnection;
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}
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void MyH323Connection::SetCapabilities(int cap, int dtmf_mode, void *_prefs, int pref_codec)
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void MyH323Connection::SetCapabilities(int caps, int dtmf_mode, void *_prefs, int pref_codec)
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{
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PINDEX lastcap = -1; /* last common capability index */
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int alreadysent = 0;
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@@ -1427,11 +1446,12 @@ void MyH323Connection::SetCapabilities(int cap, int dtmf_mode, void *_prefs, int
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struct ast_format_list format;
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int frames_per_packet;
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int max_frames_per_packet;
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H323Capability *cap;
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localCapabilities.RemoveAll();
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if (h323debug) {
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cout << "Setting capabilities to " << ast_getformatname_multiple(caps_str, sizeof(caps_str), cap) << endl;
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cout << "Setting capabilities to " << ast_getformatname_multiple(caps_str, sizeof(caps_str), caps) << endl;
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ast_codec_pref_string(prefs, caps_str, sizeof(caps_str));
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cout << "Capabilities in preference order is " << caps_str << endl;
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}
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@@ -1449,7 +1469,7 @@ void MyH323Connection::SetCapabilities(int cap, int dtmf_mode, void *_prefs, int
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y <<= 1;
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codec = y;
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}
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if (!(cap & codec) || (alreadysent & codec) || !(codec & AST_FORMAT_AUDIO_MASK))
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if (!(caps & codec) || (alreadysent & codec) || !(codec & AST_FORMAT_AUDIO_MASK))
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continue;
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alreadysent |= codec;
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format = ast_codec_pref_getsize(prefs, codec);
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@@ -1518,23 +1538,64 @@ void MyH323Connection::SetCapabilities(int cap, int dtmf_mode, void *_prefs, int
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}
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}
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lastcap++;
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lastcap = localCapabilities.SetCapability(0, lastcap, new H323_UserInputCapability(H323_UserInputCapability::HookFlashH245));
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cap = new H323_UserInputCapability(H323_UserInputCapability::HookFlashH245);
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if (cap && cap->IsUsable(*this)) {
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lastcap++;
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lastcap = localCapabilities.SetCapability(0, lastcap, cap);
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} else if (cap)
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delete cap; /* Capability is not usable */
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lastcap++;
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dtmfMode = dtmf_mode;
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if ((dtmfMode & H323_DTMF_INBAND)) {
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localCapabilities.SetCapability(0, lastcap, new H323_UserInputCapability(H323_UserInputCapability::BasicString));
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sendUserInputMode = SendUserInputAsString;
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} else {
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lastcap = localCapabilities.SetCapability(0, lastcap, new H323_UserInputCapability(H323_UserInputCapability::SignalToneRFC2833));
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/* Cisco sends DTMF only through h245-alphanumeric or h245-signal, no support for RFC2833 */
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lastcap = localCapabilities.SetCapability(0, lastcap, new H323_UserInputCapability(H323_UserInputCapability::SignalToneH245));
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sendUserInputMode = SendUserInputAsTone; /* RFC2833 transmission handled at Asterisk level */
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if (h323debug) {
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cout << "DTMF mode is " << (int)dtmfMode << endl;
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}
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if (dtmfMode) {
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lastcap++;
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if (dtmfMode == H323_DTMF_INBAND) {
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cap = new H323_UserInputCapability(H323_UserInputCapability::BasicString);
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if (cap && cap->IsUsable(*this)) {
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lastcap = localCapabilities.SetCapability(0, lastcap, cap);
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} else if (cap)
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delete cap; /* Capability is not usable */
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sendUserInputMode = SendUserInputAsString;
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} else {
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if ((dtmfMode & H323_DTMF_RFC2833) != 0) {
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cap = new H323_UserInputCapability(H323_UserInputCapability::SignalToneRFC2833);
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if (cap && cap->IsUsable(*this))
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lastcap = localCapabilities.SetCapability(0, lastcap, cap);
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else {
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dtmfMode |= H323_DTMF_SIGNAL;
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if (cap)
|
||||
delete cap; /* Capability is not usable */
|
||||
}
|
||||
}
|
||||
if ((dtmfMode & H323_DTMF_CISCO) != 0) {
|
||||
/* Try Cisco's RTP DTMF relay too, but prefer RFC2833 or h245-signal */
|
||||
cap = new AST_CiscoDtmfCapability();
|
||||
if (cap && cap->IsUsable(*this)) {
|
||||
lastcap = localCapabilities.SetCapability(0, lastcap, cap);
|
||||
/* We cannot send Cisco RTP DTMFs, use h245-signal instead */
|
||||
dtmfMode |= H323_DTMF_SIGNAL;
|
||||
} else {
|
||||
dtmfMode |= H323_DTMF_SIGNAL;
|
||||
if (cap)
|
||||
delete cap; /* Capability is not usable */
|
||||
}
|
||||
}
|
||||
if ((dtmfMode & H323_DTMF_SIGNAL) != 0) {
|
||||
/* Cisco usually sends DTMF correctly only through h245-alphanumeric or h245-signal */
|
||||
cap = new H323_UserInputCapability(H323_UserInputCapability::SignalToneH245);
|
||||
if (cap && cap->IsUsable(*this))
|
||||
lastcap = localCapabilities.SetCapability(0, lastcap, cap);
|
||||
else if (cap)
|
||||
delete cap; /* Capability is not usable */
|
||||
}
|
||||
sendUserInputMode = SendUserInputAsTone; /* RFC2833 transmission handled at Asterisk level */
|
||||
}
|
||||
}
|
||||
|
||||
if (h323debug) {
|
||||
cout << "Allowed Codecs:\n\t" << setprecision(2) << localCapabilities << endl;
|
||||
cout << "Allowed Codecs for " << GetCallToken() << " (" << GetSignallingChannel()->GetLocalAddress() << "):\n\t" << setprecision(2) << localCapabilities << endl;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@@ -112,7 +112,7 @@ public:
|
||||
unsigned progressAlert;
|
||||
int cause;
|
||||
|
||||
RTP_DataFrame::PayloadTypes dtmfCodec;
|
||||
RTP_DataFrame::PayloadTypes dtmfCodec[2];
|
||||
int dtmfMode;
|
||||
};
|
||||
|
||||
|
||||
@@ -18,6 +18,7 @@ H323_REGISTER_CAPABILITY(AST_G729Capability, OPAL_G729);
|
||||
H323_REGISTER_CAPABILITY(AST_G729ACapability, OPAL_G729A);
|
||||
H323_REGISTER_CAPABILITY(AST_GSM0610Capability, OPAL_GSM0610);
|
||||
H323_REGISTER_CAPABILITY(AST_CiscoG726Capability, CISCO_G726r32);
|
||||
H323_REGISTER_CAPABILITY(AST_CiscoDtmfCapability, CISCO_DTMF_RELAY);
|
||||
|
||||
OPAL_MEDIA_FORMAT_DECLARE(OpalG711ALaw64kFormat,
|
||||
OPAL_G711_ALAW_64K,
|
||||
@@ -99,6 +100,18 @@ OPAL_MEDIA_FORMAT_DECLARE(OpalCiscoG726Format,
|
||||
8, // 1 millisecond
|
||||
OpalMediaFormat::AudioTimeUnits,
|
||||
0);
|
||||
#if 0
|
||||
OPAL_MEDIA_FORMAT_DECLARE(OpalCiscoDTMFRelayFormat,
|
||||
CISCO_DTMF_RELAY,
|
||||
OpalMediaFormat::DefaultAudioSessionID,
|
||||
(RTP_DataFrame::PayloadTypes)121, // Choose this for Cisco IOS compatibility
|
||||
TRUE, // Needs jitter
|
||||
100, // bits/sec
|
||||
4, // bytes/frame
|
||||
8*150, // 150 millisecond
|
||||
OpalMediaFormat::AudioTimeUnits,
|
||||
0);
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Capability: G.711
|
||||
|
||||
@@ -52,7 +52,7 @@ typedef struct call_options {
|
||||
int progress_setup;
|
||||
int progress_alert;
|
||||
int progress_audio;
|
||||
int dtmfcodec;
|
||||
int dtmfcodec[2];
|
||||
int dtmfmode;
|
||||
int capability;
|
||||
int bridge;
|
||||
@@ -172,7 +172,7 @@ extern answer_call_cb on_answer_call;
|
||||
/* This is a callback prototype function, called when
|
||||
we know which RTP payload type RFC2833 will be
|
||||
transmitted */
|
||||
typedef void (*rfc2833_cb)(unsigned, const char *, int);
|
||||
typedef void (*rfc2833_cb)(unsigned, const char *, int, int);
|
||||
extern rfc2833_cb on_set_rfc2833_payload;
|
||||
|
||||
typedef void (*hangup_cb)(unsigned, const char *, int);
|
||||
@@ -188,7 +188,9 @@ extern setpeercapabilities_cb on_setpeercapabilities;
|
||||
extern int h323debug;
|
||||
|
||||
#define H323_DTMF_RFC2833 (1 << 0)
|
||||
#define H323_DTMF_INBAND (1 << 1)
|
||||
#define H323_DTMF_CISCO (1 << 1)
|
||||
#define H323_DTMF_SIGNAL (1 << 2)
|
||||
#define H323_DTMF_INBAND (1 << 3)
|
||||
|
||||
#define H323_DTMF_RFC2833_PT 101
|
||||
#define H323_DTMF_CISCO_PT 121
|
||||
|
||||
@@ -28,7 +28,7 @@ port = 1720
|
||||
;
|
||||
; User-Input Mode (DTMF)
|
||||
;
|
||||
; valid entries are: rfc2833, inband
|
||||
; valid entries are: rfc2833, inband, cisco, h245-signal
|
||||
; default is rfc2833
|
||||
;dtmfmode=rfc2833
|
||||
;
|
||||
@@ -38,6 +38,8 @@ port = 1720
|
||||
; To specify required payload type, put it after colon in dtmfmode
|
||||
; option like
|
||||
;dtmfmode=rfc2833:101
|
||||
; or
|
||||
;dtmfmode=cisco:121
|
||||
;
|
||||
; Set the gatekeeper
|
||||
; DISCOVER - Find the Gk address using multicast
|
||||
|
||||
Reference in New Issue
Block a user