Hi, We have Asterisk Installed on AWS with following configs: Asterisk Version: 15.4.0 with NAT and Gateway. OS: CentOS.
The problem we are facing is that we are getting Audio while calling using a SIP Phone connected to our Asterisk using our Local IP. But, we are facing no Audio issue on both sides when calling from an External IP. By External IP I mean, calling from a connection outside of our Infrastructure. So for that, we have configured NAT settings and stun server in pjsip.conf and rtp.conf respectively. But even then we are facing the same problem, NO AUDIO!. By turning on rtp debug on we can see the following logs: Logs while calling from External IP: Sent RTP packet to xxx:xxx:xxx:xxx:50654 <http://157.48.188.116:50654> (type 00, seq 000569, ts 000160, len 000160) Sent RTP packet to xxx:xxx:xxx:xxx:50654 <http://157.48.188.116:50654/> (type 00, seq 000570, ts 000320, len 000160) Sent RTP packet to xxx:xxx:xxx:xxx:50654 <http://157.48.188.116:50654/> (type 00, seq 000571, ts 000480, len 000160) Sent RTP packet to xxx:xxx:xxx:xxx:50654 <http://157.48.188.116:50654/>(type 00, seq 000572, ts 000640, len 000160) Sent RTP packet to xxx:xxx:xxx:xxx:50654 <http://157.48.188.116:50654/> (type 00, seq 000573, ts 000800, len 000160) Sent RTP packet to xxx:xxx:xxx:xxx:50654 <http://157.48.188.116:50654/> (type 00, seq 000574, ts 000960, len 000160) Sent RTP packet to xxx:xxx:xxx:xxx:50654 <http://157.48.188.116:50654/>(type 00, seq 000575, ts 001120, len 000160) Sent RTP packet to xxx:xxx:xxx:xxx:50654 <http://157.48.188.116:50654/> (type 00, seq 000576, ts 001280, len 000160) Sent RTP packet to xxx:xxx:xxx:xxx:50654 <http://157.48.188.116:50654/>(type 00, seq 000577, ts 001440, len 000160) Sent RTP packet to xxx:xxx:xxx:xxx:50654 <http://157.48.188.116:50654/> (type 00, seq 000578, ts 001600, len 000160) Logs while calling from Local / Internal IP: Got RTP packet from xxx:xxx:xxx:xxx:50433 (type 00, seq 006608, ts 3065984412, len 000160) Got RTP packet from xxx:xxx:xxx:xxx:50433 (type 00, seq 006609, ts 3065984572, len 000160) Got RTP packet from xxx:xxx:xxx:xxx:50433 (type 00, seq 006610, ts 3065984732, len 000160) Got RTP packet from xxx:xxx:xxx:xxx:50433 (type 00, seq 006611, ts 3065984892, len 000160) Got RTP packet from xxx:xxx:xxx:xxx:50433 (type 00, seq 006612, ts 3065985052, len 000160) Got RTP packet from xxx:xxx:xxx:xxx:50433 (type 00, seq 006613, ts 3065985212, len 000160) Got RTP packet from xxx:xxx:xxx:xxx:50433 (type 00, seq 006614, ts 3065985372, len 000160) Got RTP packet from xxx:xxx:xxx:xxx:50433 (type 00, seq 006615, ts 3065985532, len 000160) Got RTP packet from xxx:xxx:xxx:xxx:50433 (type 00, seq 006616, ts 3065985692, len 000160) Got RTP packet from xxx:xxx:xxx:xxx:50433 (type 00, seq 006617, ts 3065985852, len 000160) Sent RTP packet to xxx:xxx:xxx:xxx:50433 *(via ICE)* (type 00, seq 027738, ts 000160, len 000170) Sent RTP packet to xxx:xxx:xxx:xxx:50433 *(via ICE)* (type 00, seq 027739, ts 000320, len 000170) Got RTP packet from xxx:xxx:xxx:xxx:50433 (type 00, seq 006618, ts 3065986012, len 000160) Sent RTP packet to xxx:xxx:xxx:xxx:50433 *(via ICE)* (type 00, seq 027740, ts 000480, len 000170) Got RTP packet from xxx:xxx:xxx:xxx:50433 (type 00, seq 006619, ts 3065986172, len 000160) Sent RTP packet to xxx:xxx:xxx:xxx:50433 *(via ICE)* (type 00, seq 027741, ts 000640, len 000170) Got RTP packet from xxx:xxx:xxx:xxx:50433 (type 00, seq 006620, ts 3065986332, len 000160) Sent RTP packet to xxx:xxx:xxx:xxx:50433 *(via ICE)* (type 00, seq 027742, ts 000800, len 000170) Got RTP packet from xxx:xxx:xxx:xxx:50433 (type 00, seq 006621, ts 3065986492, len 000160) Sent RTP packet to xxx:xxx:xxx:xxx:50433 *(via ICE)* (type 00, seq 027743, ts 000960, len 000170) What could go wrong for the difference in log? We are getting audio where we are getting *VIA ICE.* Following is our rtp.conf and pjsip.conf respectively: *rtp.conf* [general]rtpstart=10002rtpend=20000rtcpinterval=9998rtpchecksums=nostrictrtp=noicesupport=yesstunaddr=stun.l.google.com:19302;stunaddr=xx.xx.xx.xx:3478 ; *pjsip.conf* [global] type = global debug = no [transport-udp-nat] type=transport protocol=udp bind=0.0.0.0 local_net=xxx.xxx.xxx.xxx/255.255.255.240 external_media_address=xxx.xxx.xxx.xxx ;public IP of gateway / tried with AWS public IP too external_signaling_address=xxx.xxx.xxx.xxx ; same as external_media_address cert_file=some_pem_file ca_list_file=some_crt_file [transport-udp] type = transport protocol = udp bind = 0.0.0.0:5060 ;tried with 0.0.0.0 too [transport-wss] type=transport protocol=wss bind=0.0.0.0 [transport-tls] type=transport protocol=tls bind=0.0.0.0:8089 ;tried with 0.0.0.0 too cert_file=some_pem_file cipher=ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256 priv_key_file=some_priv_key ca_list_file=some_crt_file method=tlsv1 [some_context] type = aor max_contacts = 1 [some_context] type = auth username = user_name password = password [some_context] type=endpoint context=outgoing dtmf_mode=rfc4733 transport=transport-tls transport=transport-udp-nat rtp_symmetric=yes disallow=all allow=ulaw allow=opus ice_support = yes direct_media = no use_avpf = yes auth = some_context outbound_auth=some_context media_encryption=dtls media_use_received_transport=yes dtls_verify = fingerprint dtls_cert_file=some_pem_file dtls_ca_file=some_crt_file dtls_private_key=some_priv_key dtls_cipher=ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256 dtls_setup=actpass rtcp_mux=yes aors = some_context Please help us out. What could go wrong?. Also if some configuration is missing / needs to be changed or need more logs for debugging, please let us know. -- *Thanks, * *Balraj Singh Saini,* *ZeMoSo Technologies.*
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