diff --git a/src/mod/endpoints/mod_dingaling/mod_dingaling.c b/src/mod/endpoints/mod_dingaling/mod_dingaling.c
index 867eb6a25e..904ad07d65 100644
--- a/src/mod/endpoints/mod_dingaling/mod_dingaling.c
+++ b/src/mod/endpoints/mod_dingaling/mod_dingaling.c
@@ -181,7 +181,7 @@ static switch_status_t channel_on_ring(switch_core_session_t *session);
 static switch_status_t channel_on_loopback(switch_core_session_t *session);
 static switch_status_t channel_on_transmit(switch_core_session_t *session);
 static switch_call_cause_t channel_outgoing_channel(switch_core_session_t *session, switch_caller_profile_t *outbound_profile,
-													switch_core_session_t **new_session, switch_memory_pool_t *pool);
+													switch_core_session_t **new_session, switch_memory_pool_t **pool);
 static switch_status_t channel_read_frame(switch_core_session_t *session, switch_frame_t **frame, int timeout,
 										  switch_io_flag_t flags, int stream_id);
 static switch_status_t channel_write_frame(switch_core_session_t *session, switch_frame_t *frame, int timeout,
@@ -1515,7 +1515,7 @@ static const switch_loadable_module_interface_t channel_module_interface = {
    that allocate memory or you will have 1 channel with memory allocated from another channel's pool!
 */
 static switch_call_cause_t channel_outgoing_channel(switch_core_session_t *session, switch_caller_profile_t *outbound_profile,
-													switch_core_session_t **new_session, switch_memory_pool_t *pool)
+													switch_core_session_t **new_session, switch_memory_pool_t **pool)
 {
 	if ((*new_session = switch_core_session_request(&channel_endpoint_interface, pool)) != 0) {
 		struct private_object *tech_pvt;
diff --git a/src/mod/endpoints/mod_iax/mod_iax.c b/src/mod/endpoints/mod_iax/mod_iax.c
index 6870ff2d96..299db5c3ef 100644
--- a/src/mod/endpoints/mod_iax/mod_iax.c
+++ b/src/mod/endpoints/mod_iax/mod_iax.c
@@ -427,7 +427,7 @@ static switch_status_t channel_on_ring(switch_core_session_t *session);
 static switch_status_t channel_on_loopback(switch_core_session_t *session);
 static switch_status_t channel_on_transmit(switch_core_session_t *session);
 static switch_call_cause_t channel_outgoing_channel(switch_core_session_t *session, switch_caller_profile_t *outbound_profile,
-													switch_core_session_t **new_session, switch_memory_pool_t *pool);
+													switch_core_session_t **new_session, switch_memory_pool_t **pool);
 static switch_status_t channel_read_frame(switch_core_session_t *session, switch_frame_t **frame, int timeout,
 										switch_io_flag_t flags, int stream_id);
 static switch_status_t channel_write_frame(switch_core_session_t *session, switch_frame_t *frame, int timeout,
@@ -803,7 +803,7 @@ static const switch_loadable_module_interface_t channel_module_interface = {
 that allocate memory or you will have 1 channel with memory allocated from another channel's pool!
 */
 static switch_call_cause_t channel_outgoing_channel(switch_core_session_t *session, switch_caller_profile_t *outbound_profile,
-													switch_core_session_t **new_session, switch_memory_pool_t *pool)
+													switch_core_session_t **new_session, switch_memory_pool_t **pool)
 {
 	if ((*new_session = switch_core_session_request(&channel_endpoint_interface, pool)) != 0) {
 		private_t *tech_pvt;
diff --git a/src/mod/endpoints/mod_portaudio/mod_portaudio.c b/src/mod/endpoints/mod_portaudio/mod_portaudio.c
index d006ac5cbf..d44dfda0a5 100644
--- a/src/mod/endpoints/mod_portaudio/mod_portaudio.c
+++ b/src/mod/endpoints/mod_portaudio/mod_portaudio.c
@@ -144,7 +144,7 @@ static switch_status_t channel_on_loopback(switch_core_session_t *session);
 static switch_status_t channel_on_transmit(switch_core_session_t *session);
 static switch_call_cause_t channel_outgoing_channel(switch_core_session_t *session,
 													switch_caller_profile_t *outbound_profile,
-													switch_core_session_t **new_session, switch_memory_pool_t *pool);
+													switch_core_session_t **new_session, switch_memory_pool_t **pool);
 static switch_status_t channel_read_frame(switch_core_session_t *session, switch_frame_t **frame, int timeout,
                                           switch_io_flag_t flags, int stream_id);
 static switch_status_t channel_write_frame(switch_core_session_t *session, switch_frame_t *frame, int timeout,
@@ -828,7 +828,7 @@ static const switch_loadable_module_interface_t channel_module_interface = {
    that allocate memory or you will have 1 channel with memory allocated from another channel's pool!
 */
 static switch_call_cause_t channel_outgoing_channel(switch_core_session_t *session, switch_caller_profile_t *outbound_profile,
-													switch_core_session_t **new_session, switch_memory_pool_t *pool)
+													switch_core_session_t **new_session, switch_memory_pool_t **pool)
 {
 
 	if ((*new_session = switch_core_session_request(&channel_endpoint_interface, pool)) != 0) {
diff --git a/src/mod/endpoints/mod_sofia/mod_sofia.c b/src/mod/endpoints/mod_sofia/mod_sofia.c
index a866450a87..d9bff07c2b 100644
--- a/src/mod/endpoints/mod_sofia/mod_sofia.c
+++ b/src/mod/endpoints/mod_sofia/mod_sofia.c
@@ -336,7 +336,7 @@ static switch_status_t sofia_on_loopback(switch_core_session_t *session);
 static switch_status_t sofia_on_transmit(switch_core_session_t *session);
 
 static switch_call_cause_t sofia_outgoing_channel(switch_core_session_t *session, switch_caller_profile_t *outbound_profile,
-												  switch_core_session_t **new_session, switch_memory_pool_t *pool);
+												  switch_core_session_t **new_session, switch_memory_pool_t **pool);
 
 static switch_status_t sofia_read_frame(switch_core_session_t *session, switch_frame_t **frame, int timeout,
 										switch_io_flag_t flags, int stream_id);
@@ -2237,7 +2237,7 @@ static void logger(void *logarg, char const *fmt, va_list ap)
 
 
 static switch_call_cause_t sofia_outgoing_channel(switch_core_session_t *session, switch_caller_profile_t *outbound_profile,
-												  switch_core_session_t **new_session, switch_memory_pool_t *pool)
+												  switch_core_session_t **new_session, switch_memory_pool_t **pool)
 {
 	switch_call_cause_t cause = SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER;
 	switch_core_session_t *nsession;
diff --git a/src/switch_core.c b/src/switch_core.c
index 3cb66217cf..f940762eb0 100644
--- a/src/switch_core.c
+++ b/src/switch_core.c
@@ -3717,7 +3717,7 @@ SWITCH_DECLARE(switch_core_session_t *) switch_core_session_request(const switch
 		return NULL;
 	}
 
-	if (pool) {
+	if (pool && *pool) {
 		usepool = *pool;
 		*pool = NULL;
 	} else if (switch_core_new_memory_pool(&usepool) != SWITCH_STATUS_SUCCESS) {