I try to connect to HuaWei softswitch. The HuaWei technical stuff said that I had to remove the Silence Suppression in asterisk. I check it is in chan_sip.c. But my asterisk is built with Tribox, which means i am using trtibox. but I can not find the chan_sip.c file and no idea to compile asterisk again in tribox. this is part of packet for testing.
o=root 1474 1474 IN IP4 XXX.XXX.XXX.XXX
c=IN IP4 XXX.XXX.XXX.XXX
m=audio 12774 RTP/AVP 18 101
a=silenceSupp:off - - - -
Does anyone has a solution how to solve this problem?
Pleaase give me a hand !