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channels/chan_pjsip: Add PJSIP_SEND_SESSION_REFRESH

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This patch adds a new PJSIP specific dialplan function,
PJSIP_SEND_SESSION_REFRESH. When invoked on a PJSIP channel, the media
session will be refreshed via either an UPDATE or re-INVITE request.
When used in conjunction with the PJSIP_MEDIA_OFFER dialplan function,
the formats in use on a PJSIP channel can be re-negotiated and changed
dynamically after call setup.

ASTERISK-26277 #close

Change-Id: Ib98fe09ba889aafe26d58d32f0fd1323f8fd9b1b
This commit is contained in:
Matt Jordan
2016-08-07 09:58:59 -05:00
parent 5a5b949333
commit 5f815f9dba
4 changed files with 148 additions and 1 deletions
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12
channels/pjsip/include/dialplan_functions.h
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@@ -60,6 +60,18 @@ int pjsip_acf_media_offer_write(struct ast_channel *chan, const char *cmd, char
*/
int pjsip_acf_media_offer_read(struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len);
/*!
* \brief PJSIP_SEND_SESSION_REFRESH function write callback
* \param chan The channel the function is called on
* \param cmd the Name of the function
* \param data Arguments passed to the function
* \param value Value to be set by the function
*
* \retval 0 on success
* \retval -1 on failure
*/
int pjsip_acf_session_refresh_write(struct ast_channel *chan, const char *cmd, char *data, const char *value);
/*!
* \brief PJSIP_DIAL_CONTACTS function read callback
* \param chan The channel the function is called on