here is the sip log.
webcall*CLI> pjsip set logger on
PJSIP Logging enabled
<— Received SIP request (1568 bytes) from UDP:172.16.48.247:8014 —>
INVITE sip:1005@webcall.collnetwork.net SIP/2.0
Via: SIP/2.0/UDP 172.16.48.247:8014;branch=z9hG4bK-524287-1—2c702a279370ac4b;rport
Max-Forwards: 70
Contact: <sip:1603@172.16.48.247:8014>;+sip.instance=“urn:uuid:c57ee66e-5a18-39ef-86aa-b7a9e6380e98”
Call-ID: W9A7a43GNZr2hKT2F901rA..
CSeq: 1 INVITE
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, REGISTER, SUBSCRIBE, INFO, PUBLISH, UPDATE
Content-Type: application/sdp
Supported: replaces, answermode, eventlist, park-info, outbound, path
User-Agent: PortSIP UC Client Android - v13.0.1
Allow-Events: hold, talk, conference, dialog, park-info
Content-Length: 823
v=0
o=- 4068249312115680929 2 IN IP4 172.16.48.247
s=-
t=0 0
m=audio 10200 RTP/AVP 105 101
c=IN IP4 172.16.48.247
a=mid:audio
a=sendrecv
a=rtpmap:105 opus/48000/2
a=rtcp-fb:105 transport-cc
a=fmtp:105 minptime=10;useinbandfec=1
a=rtpmap:101 telephone-event/8000
a=ssrc:3825323576 cname:Wft1PfpYWMunRjfk
m=video 10202 RTP/AVP 125 120
c=IN IP4 172.16.48.247
a=mid:video
a=sendrecv
a=rtcp-rsize
a=rtpmap:125 H264/90000
a=rtcp-fb:125 goog-remb
a=rtcp-fb:125 transport-cc
a=rtcp-fb:125 ccm fir
a=rtcp-fb:125 nack
a=rtcp-fb:125 nack pli
a=fmtp:125 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42001f
a=rtpmap:120 VP8/90000
a=rtcp-fb:120 goog-remb
a=rtcp-fb:120 transport-cc
a=rtcp-fb:120 ccm fir
a=rtcp-fb:120 nack
a=rtcp-fb:120 nack pli
a=ssrc:378861730 cname:Wft1PfpYWMunRjfk
<— Transmitting SIP response (554 bytes) to UDP:172.16.48.247:8014 —>
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 172.16.48.247:8014;rport=8014;received=172.16.48.247;branch=z9hG4bK-524287-1—2c702a279370ac4b
Call-ID: W9A7a43GNZr2hKT2F901rA..
CSeq: 1 INVITE
WWW-Authenticate: Digest realm=“collnetwork.net”,nonce=“1759504222/37df434aeb31f5ee3ff7bffbcf3343f8”,opaque=“6b8797fa7a39a6e8”,algorithm=MD5,qop=“auth”
Server: Asterisk PBX 22.2.0~dfsg+~cs6.15.60671435-2
Content-Length: 0
<— Received SIP request (354 bytes) from UDP:172.16.48.247:8014 —>
ACK sip:1005@webcall.collnetwork.net SIP/2.0
Via: SIP/2.0/UDP 172.16.48.247:8014;branch=z9hG4bK-524287-1—2c702a279370ac4b;rport
Max-Forwards: 70
Call-ID: W9A7a43GNZr2hKT2F901rA..
CSeq: 1 ACK
Content-Length: 0
<— Received SIP request (1869 bytes) from UDP:172.16.48.247:8014 —>
INVITE sip:1005@webcall.collnetwork.net SIP/2.0
Via: SIP/2.0/UDP 172.16.48.247:8014;branch=z9hG4bK-524287-1—8dd88e5d46596067;rport
Max-Forwards: 70
Contact: <sip:1603@172.16.48.247:8014>;+sip.instance=“urn:uuid:c57ee66e-5a18-39ef-86aa-b7a9e6380e98”
Call-ID: W9A7a43GNZr2hKT2F901rA..
CSeq: 2 INVITE
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, REGISTER, SUBSCRIBE, INFO, PUBLISH, UPDATE
Content-Type: application/sdp
Supported: replaces, answermode, eventlist, park-info, outbound, path
User-Agent: PortSIP UC Client Android - v13.0.1
Authorization: Digest username=“1603”,realm=“collnetwork.net”,nonce=“1759504222/37df434aeb31f5ee3ff7bffbcf3343f8”,uri=“sip:1005@webcall.collnetwork.net”,response=“c68eba393c0c8217a13ed8679d507ee0”,cnonce=“33787a0ff2e91e6fafc3803c1ea2b6d7”,nc=00000001,qop=auth,algorithm=MD5,opaque=“6b8797fa7a39a6e8”
Allow-Events: hold, talk, conference, dialog, park-info
Content-Length: 823
v=0
o=- 4068249312115680929 2 IN IP4 172.16.48.247
s=-
t=0 0
m=audio 10200 RTP/AVP 105 101
c=IN IP4 172.16.48.247
a=mid:audio
a=sendrecv
a=rtpmap:105 opus/48000/2
a=rtcp-fb:105 transport-cc
a=fmtp:105 minptime=10;useinbandfec=1
a=rtpmap:101 telephone-event/8000
a=ssrc:3825323576 cname:Wft1PfpYWMunRjfk
m=video 10202 RTP/AVP 125 120
c=IN IP4 172.16.48.247
a=mid:video
a=sendrecv
a=rtcp-rsize
a=rtpmap:125 H264/90000
a=rtcp-fb:125 goog-remb
a=rtcp-fb:125 transport-cc
a=rtcp-fb:125 ccm fir
a=rtcp-fb:125 nack
a=rtcp-fb:125 nack pli
a=fmtp:125 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42001f
a=rtpmap:120 VP8/90000
a=rtcp-fb:120 goog-remb
a=rtcp-fb:120 transport-cc
a=rtcp-fb:120 ccm fir
a=rtcp-fb:120 nack
a=rtcp-fb:120 nack pli
a=ssrc:378861730 cname:Wft1PfpYWMunRjfk
<— Transmitting SIP response (355 bytes) to UDP:172.16.48.247:8014 —>
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 172.16.48.247:8014;rport=8014;received=172.16.48.247;branch=z9hG4bK-524287-1—8dd88e5d46596067
Call-ID: W9A7a43GNZr2hKT2F901rA..
CSeq: 2 INVITE
Server: Asterisk PBX 22.2.0~dfsg+~cs6.15.60671435-2
Content-Length: 0
<— Transmitting SIP request (2115 bytes) to UDP:172.17.67.14:5060 —>
INVITE sip:1005@cucm-pub-west.fuotuoke.edu.ng:5060 SIP/2.0
Via: SIP/2.0/UDP 172.16.48.3:5060;rport;branch=z9hG4bKPj06681a35-d9c7-4c3b-8ed0-282cbfbe1bf4
Contact: <sip:asterisk@172.16.48.3:5060>
Call-ID: cd6a9c37-e9a0-45ab-a494-cc87c950df2c
CSeq: 28362 INVITE
Allow: OPTIONS, REGISTER, SUBSCRIBE, NOTIFY, PUBLISH, INVITE, ACK, BYE, CANCEL, UPDATE, PRACK, INFO, MESSAGE, REFER
Supported: 100rel, timer, replaces, norefersub, histinfo
Session-Expires: 1800
Min-SE: 90
Max-Forwards: 70
User-Agent: Asterisk PBX 22.2.0~dfsg+~cs6.15.60671435-2
Content-Type: application/sdp
Content-Length: 1394
v=0
o=- 226567392 226567392 IN IP4 172.16.48.3
s=Asterisk
c=IN IP4 172.16.48.3
t=0 0
m=audio 15442 RTP/AVPF 107 9 0 8 101 103
a=ice-ufrag:02f4a4430e15252239e539e341c77948
a=ice-pwd:17d488c47e6bdabf3f918bba53def831
a=candidate:Hac103003 1 UDP 2130706431 172.16.48.3 15442 typ host
a=candidate:S665a64c5 1 UDP 1694498815 102.90.100.197 50250 typ srflx raddr 172.16.48.3 rport 15442
a=candidate:Hac103003 2 UDP 2130706430 172.16.48.3 15443 typ host
a=candidate:S665a64c5 2 UDP 1694498814 102.90.100.197 50251 typ srflx raddr 172.16.48.3 rport 15443
a=rtpmap:107 opus/48000/2
a=rtpmap:9 G722/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/48000
a=fmtp:101 0-16
a=rtpmap:103 telephone-event/8000
a=fmtp:103 0-16
a=ptime:20
a=maxptime:60
a=sendrecv
m=video 13418 RTP/AVPF 99 100
a=ice-ufrag:66b1b0b620565ed02ad44bc771048e2c
a=ice-pwd:2efa8a34496bb71828ea3da21ad1b2e2
a=candidate:Hac103003 1 UDP 2130706431 172.16.48.3 13418 typ host
a=candidate:S665a64c5 1 UDP 1694498815 102.90.100.197 50252 typ srflx raddr 172.16.48.3 rport 13418
a=candidate:Hac103003 2 UDP 2130706430 172.16.48.3 13419 typ host
a=candidate:S665a64c5 2 UDP 1694498814 102.90.100.197 50253 typ srflx raddr 172.16.48.3 rport 13419
a=rtpmap:99 H264/90000
a=fmtp:99 packetization-mode=1;level-asymmetry-allowed=1;profile-level-id=42001F
a=rtpmap:100 VP8/90000
a=sendrecv
<— Received SIP response (380 bytes) from UDP:172.17.67.14:5060 —>
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 172.16.48.3:5060;rport;branch=z9hG4bKPj06681a35-d9c7-4c3b-8ed0-282cbfbe1bf4