One-way audio: please see my SIP log and help me with ports

pgr · November 11, 2023, 12:26pm

Hi! I’m having the typical trouble and I believe I have to open ports on my Windows firewall, but I need help figuring out which ones.

This is an outgoing call from a Blink softphone on my internal network, to an external Linhome app on my mobile phone.

My Linhome rings, I am able to answer the call, and audio is heard from the mobile to the internal extension, but not the other way around.

If I completely bring down my Windows firewall, the call works well with two way audio.

I obfuscated anything that is worth obfuscating.

The calling Blink softphone is using extension 225, and it’s calling number 291, defined as PJSIP/mysipaccount@LinHome_Pgr. That trunk is defined like this:

My FreePBX is 10.0.0.10.

Here’s the SIP trace:

freepbx*CLI>
freepbx*CLI>
freepbx*CLI>
freepbx*CLI> pjsip set logger on
PJSIP Logging enabled
<--- Transmitting SIP request (403 bytes) to UDP:10.0.0.2:5072 --->
OPTIONS sip:[email protected]:5072 SIP/2.0
Via: SIP/2.0/UDP 10.0.0.10:5060;rport;branch=z9hG4bKPj27f13642-41ac-4e13-becf-63f6966046f4
From: <sip:[email protected]>;tag=e34cae45-bbfc-4236-b84b-15ba7bb387fa
To: <sip:[email protected]>
Contact: <sip:[email protected]:5060>
Call-ID: fddf832b-9abb-45a9-8319-0b4480bf1a25
CSeq: 60970 OPTIONS
Max-Forwards: 70
User-Agent: FPBX-16.0.40.7(18.19.0)
Content-Length:  0


<--- Received SIP response (473 bytes) from UDP:10.0.0.2:5072 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.0.0.10:5060;rport=5060;branch=z9hG4bKPj27f13642-41ac-4e13-becf-63f6966046f4
From: <sip:[email protected]>;tag=e34cae45-bbfc-4236-b84b-15ba7bb387fa
To: <sip:[email protected]>;tag=5278390
Call-ID: fddf832b-9abb-45a9-8319-0b4480bf1a25
CSeq: 60970 OPTIONS
Supported: replaces, path, timer, eventlist
User-Agent: Grandstream HT818 1.0.45.2
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE
Content-Length: 0


<--- Received SIP request (965 bytes) from UDP:10.0.0.32:63280 --->
INVITE sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP 10.0.0.32:63280;rport;branch=z9hG4bKPj4134663d0bce49289a1b5349bc2b2c9c
Max-Forwards: 70
From: "225" <sip:[email protected]>;tag=b0f123ddd39f486d8520f43179902d42
To: <sip:[email protected]>
Contact: <sip:[email protected]:63280>
Call-ID: 3c2cc841adf147cfa4086e98f9fb1e4e
CSeq: 26206 INVITE
Allow: SUBSCRIBE, NOTIFY, INVITE, ACK, BYE, CANCEL, UPDATE, MESSAGE, REFER
Supported: replaces, norefersub, gruu
User-Agent: Blink 3.2.0 (Windows)
Content-Type: application/sdp
Content-Length:   419

v=0
o=- 3908693585 3908693585 IN IP4 10.0.0.32
s=Blink 3.2.0 (Windows)
t=0 0
m=audio 50048 RTP/AVP 113 9 0 8 101
c=IN IP4 10.0.0.32
a=rtcp:50049
a=rtpmap:113 opus/48000/2
a=fmtp:113 useinbandfec=1
a=rtpmap:9 G722/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=zrtp-hash:1.10 031e52b53eca0bfbab506c0bd017873af13a52f9a54ece655bb3839c1ce1263d
a=sendrecv

<--- Transmitting SIP response (545 bytes) to UDP:10.0.0.32:63280 --->
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 10.0.0.32:63280;rport=63280;received=10.0.0.32;branch=z9hG4bKPj4134663d0bce49289a1b5349bc2b2c9c
Call-ID: 3c2cc841adf147cfa4086e98f9fb1e4e
From: "225" <sip:[email protected]>;tag=b0f123ddd39f486d8520f43179902d42
To: <sip:[email protected]>;tag=z9hG4bKPj4134663d0bce49289a1b5349bc2b2c9c
CSeq: 26206 INVITE
WWW-Authenticate: Digest realm="asterisk",nonce="1699704784/b3acc404941f90e745d3a29a0ca14bb9",opaque="0670044652b0e994",algorithm=MD5,qop="auth"
Server: FPBX-16.0.40.7(18.19.0)
Content-Length:  0


<--- Received SIP request (396 bytes) from UDP:10.0.0.32:63280 --->
ACK sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP 10.0.0.32:63280;rport;branch=z9hG4bKPj4134663d0bce49289a1b5349bc2b2c9c
Max-Forwards: 70
From: "225" <sip:[email protected]>;tag=b0f123ddd39f486d8520f43179902d42
To: <sip:[email protected]>;tag=z9hG4bKPj4134663d0bce49289a1b5349bc2b2c9c
Call-ID: 3c2cc841adf147cfa4086e98f9fb1e4e
CSeq: 26206 ACK
User-Agent: Blink 3.2.0 (Windows)
Content-Length:  0


<--- Received SIP request (1252 bytes) from UDP:10.0.0.32:63280 --->
INVITE sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP 10.0.0.32:63280;rport;branch=z9hG4bKPjfd65418a95424d989bde408c8374a166
Max-Forwards: 70
From: "225" <sip:[email protected]>;tag=b0f123ddd39f486d8520f43179902d42
To: <sip:[email protected]>
Contact: <sip:[email protected]:63280>
Call-ID: 3c2cc841adf147cfa4086e98f9fb1e4e
CSeq: 26207 INVITE
Allow: SUBSCRIBE, NOTIFY, INVITE, ACK, BYE, CANCEL, UPDATE, MESSAGE, REFER
Supported: replaces, norefersub, gruu
User-Agent: Blink 3.2.0 (Windows)
Authorization: Digest username="225", realm="asterisk", nonce="1699704784/b3acc404941f90e745d3a29a0ca14bb9", uri="sip:[email protected]", response="275dac1adf47930635d9d13cdb7fa27e", algorithm=MD5, cnonce="f489103f7fdb46489dec2b68a9a751cc", opaque="0670044652b0e994", qop=auth, nc=00000001
Content-Type: application/sdp
Content-Length:   419

v=0
o=- 3908693585 3908693585 IN IP4 10.0.0.32
s=Blink 3.2.0 (Windows)
t=0 0
m=audio 50048 RTP/AVP 113 9 0 8 101
c=IN IP4 10.0.0.32
a=rtcp:50049
a=rtpmap:113 opus/48000/2
a=fmtp:113 useinbandfec=1
a=rtpmap:9 G722/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=zrtp-hash:1.10 031e52b53eca0bfbab506c0bd017873af13a52f9a54ece655bb3839c1ce1263d
a=sendrecv

<--- Transmitting SIP response (347 bytes) to UDP:10.0.0.32:63280 --->
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 10.0.0.32:63280;rport=63280;received=10.0.0.32;branch=z9hG4bKPjfd65418a95424d989bde408c8374a166
Call-ID: 3c2cc841adf147cfa4086e98f9fb1e4e
From: "225" <sip:[email protected]>;tag=b0f123ddd39f486d8520f43179902d42
To: <sip:[email protected]>
CSeq: 26207 INVITE
Server: FPBX-16.0.40.7(18.19.0)
Content-Length:  0


<--- Transmitting SIP response (853 bytes) to UDP:10.0.0.32:63280 --->
SIP/2.0 183 Session Progress
Via: SIP/2.0/UDP 10.0.0.32:63280;rport=63280;received=10.0.0.32;branch=z9hG4bKPjfd65418a95424d989bde408c8374a166
Call-ID: 3c2cc841adf147cfa4086e98f9fb1e4e
From: "225" <sip:[email protected]>;tag=b0f123ddd39f486d8520f43179902d42
To: <sip:[email protected]>;tag=9eaa2aea-c210-4418-960f-1352af82639e
CSeq: 26207 INVITE
Server: FPBX-16.0.40.7(18.19.0)
Contact: <sip:10.0.0.10:5060>
Allow: OPTIONS, INVITE, ACK, BYE, CANCEL, UPDATE, PRACK, REGISTER, SUBSCRIBE, NOTIFY, PUBLISH, MESSAGE, REFER
Content-Type: application/sdp
Content-Length:   279

v=0
o=- 3908693585 3908693587 IN IP4 10.0.0.10
s=Asterisk
c=IN IP4 10.0.0.10
t=0 0
m=audio 18354 RTP/AVP 0 8 9 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:9 G722/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=maxptime:150
a=sendrecv

CALLERID 225 is calling 291
<--- Transmitting SIP response (917 bytes) to UDP:10.0.0.32:63280 --->
SIP/2.0 183 Session Progress
Via: SIP/2.0/UDP 10.0.0.32:63280;rport=63280;received=10.0.0.32;branch=z9hG4bKPjfd65418a95424d989bde408c8374a166
Call-ID: 3c2cc841adf147cfa4086e98f9fb1e4e
From: "225" <sip:[email protected]>;tag=b0f123ddd39f486d8520f43179902d42
To: <sip:[email protected]>;tag=9eaa2aea-c210-4418-960f-1352af82639e
CSeq: 26207 INVITE
Server: FPBX-16.0.40.7(18.19.0)
Allow: OPTIONS, INVITE, ACK, BYE, CANCEL, UPDATE, PRACK, REGISTER, SUBSCRIBE, NOTIFY, PUBLISH, MESSAGE, REFER
Contact: <sip:10.0.0.10:5060>
P-Asserted-Identity: "Linhome (Available)" <sip:[email protected]>
Content-Type: application/sdp
Content-Length:   279

v=0
o=- 3908693585 3908693587 IN IP4 10.0.0.10
s=Asterisk
c=IN IP4 10.0.0.10
t=0 0
m=audio 18354 RTP/AVP 0 8 9 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:9 G722/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=maxptime:150
a=sendrecv

<--- Transmitting SIP request (1015 bytes) to UDP:147.135.128.132:5060 --->
INVITE sip:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 10.0.0.10:5060;rport;branch=z9hG4bKPjfcd4a473-d6ae-42f1-901d-95643ee76b2b
From: "Hall" <sip:[email protected]>;tag=16ddc5e0-7fe5-447e-8452-a2c84115613e
To: <sip:[email protected]>
Contact: <sip:[email protected]:5060>
Call-ID: b1fcc222-dbe3-464c-aebc-e4a9c4b3a217
CSeq: 13693 INVITE
Allow: OPTIONS, INVITE, ACK, BYE, CANCEL, UPDATE, PRACK, REGISTER, SUBSCRIBE, NOTIFY, PUBLISH, MESSAGE, REFER
Supported: 100rel, timer, replaces, norefersub, histinfo
Session-Expires: 1800
Min-SE: 90
Max-Forwards: 70
User-Agent: FPBX-16.0.40.7(18.19.0)
Content-Type: application/sdp
Content-Length:   331

v=0
o=- 661279731 661279731 IN IP4 10.0.0.10
s=Asterisk
c=IN IP4 10.0.0.10
t=0 0
m=audio 19742 RTP/AVP 0 8 9 3 111 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:9 G722/8000
a=rtpmap:3 GSM/8000
a=rtpmap:111 G726-32/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=maxptime:150
a=sendrecv

<--- Received SIP response (451 bytes) from UDP:147.135.128.132:5060 --->
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 10.0.0.10:5060;rport=5060;branch=z9hG4bKPjfcd4a473-d6ae-42f1-901d-95643ee76b2b;received=85.123.123.123
Record-Route: <sip:147.135.128.132:5060;lr>
From: "Hall" <sip:[email protected]>;tag=16ddc5e0-7fe5-447e-8452-a2c84115613e
To: <sip:[email protected]>
Call-ID: b1fcc222-dbe3-464c-aebc-e4a9c4b3a217
CSeq: 13693 INVITE
Server: Flexisip/2.3.2-20-g4278b108 (sofia-sip-nta/2.0)
Content-Length: 0


<--- Received SIP response (352 bytes) from UDP:147.135.128.132:5060 --->
SIP/2.0 110 Push sent
Via: SIP/2.0/UDP 10.0.0.10:5060;rport=5060;branch=z9hG4bKPjfcd4a473-d6ae-42f1-901d-95643ee76b2b;received=85.123.123.123
From: "Hall" <sip:[email protected]>;tag=16ddc5e0-7fe5-447e-8452-a2c84115613e
To: <sip:[email protected]>
Call-ID: b1fcc222-dbe3-464c-aebc-e4a9c4b3a217
CSeq: 13693 INVITE
Content-Length: 0


<--- Received SIP response (543 bytes) from UDP:147.135.128.132:5060 --->
SIP/2.0 180 Ringing
Via: SIP/2.0/UDP 10.0.0.10:5060;received=85.123.123.123;rport=5060;branch=z9hG4bKPjfcd4a473-d6ae-42f1-901d-95643ee76b2b
Record-Route: <sip:147.135.128.132:5060;lr>
From: "Hall" <sip:[email protected]>;tag=16ddc5e0-7fe5-447e-8452-a2c84115613e
To: <sip:[email protected]>;tag=lFD9l19
Call-ID: b1fcc222-dbe3-464c-aebc-e4a9c4b3a217
CSeq: 13693 INVITE
User-Agent: Linhome/1.2 (OnePlus Nord CE 5G) LinphoneSDK/5.2.65-pre.2+5688d2a (release/5.2)
Supported: replaces, outbound, gruu, path
Content-Length: 0


<--- Transmitting SIP response (917 bytes) to UDP:10.0.0.32:63280 --->
SIP/2.0 183 Session Progress
Via: SIP/2.0/UDP 10.0.0.32:63280;rport=63280;received=10.0.0.32;branch=z9hG4bKPjfd65418a95424d989bde408c8374a166
Call-ID: 3c2cc841adf147cfa4086e98f9fb1e4e
From: "225" <sip:[email protected]>;tag=b0f123ddd39f486d8520f43179902d42
To: <sip:[email protected]>;tag=9eaa2aea-c210-4418-960f-1352af82639e
CSeq: 26207 INVITE
Server: FPBX-16.0.40.7(18.19.0)
Allow: OPTIONS, INVITE, ACK, BYE, CANCEL, UPDATE, PRACK, REGISTER, SUBSCRIBE, NOTIFY, PUBLISH, MESSAGE, REFER
Contact: <sip:10.0.0.10:5060>
P-Asserted-Identity: "Linhome (Available)" <sip:[email protected]>
Content-Type: application/sdp
Content-Length:   279

v=0
o=- 3908693585 3908693587 IN IP4 10.0.0.10
s=Asterisk
c=IN IP4 10.0.0.10
t=0 0
m=audio 18354 RTP/AVP 0 8 9 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:9 G722/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=maxptime:150
a=sendrecv

<--- Received SIP response (710 bytes) from UDP:147.135.128.132:5060 --->
SIP/2.0 183 Session progress
Via: SIP/2.0/UDP 10.0.0.10:5060;received=85.123.123.123;rport=5060;branch=z9hG4bKPjfcd4a473-d6ae-42f1-901d-95643ee76b2b
Record-Route: <sip:147.135.128.132:5060;lr>
From: "Hall" <sip:[email protected]>;tag=16ddc5e0-7fe5-447e-8452-a2c84115613e
To: <sip:[email protected]>;tag=lFD9l19
Call-ID: b1fcc222-dbe3-464c-aebc-e4a9c4b3a217
CSeq: 13693 INVITE
User-Agent: Linhome/1.2 (OnePlus Nord CE 5G) LinphoneSDK/5.2.65-pre.2+5688d2a (release/5.2)
Supported: replaces, outbound, gruu, path
Content-Type: application/sdp
Content-Length: 125

v=0
o=mysipaccount 2384 807 IN IP4 10.0.0.194
s=Talk
c=IN IP4 147.135.128.132
t=0 0
m=audio 16738 RTP/AVP 0 8
a=rtcp:16739

<--- Transmitting SIP request (449 bytes) to UDP:10.0.0.121:5060 --->
OPTIONS sip:[email protected]:5060;line=3e6c53ea6b849df SIP/2.0
Via: SIP/2.0/UDP 10.0.0.10:5060;rport;branch=z9hG4bKPj6cbf9f42-3bc3-4d6a-9cc9-ebad4ffa44fa
From: <sip:[email protected]>;tag=12f91ea1-e93c-4412-8865-aaac4c0fe106
To: <sip:[email protected];line=3e6c53ea6b849df>
Contact: <sip:[email protected]:5060>
Call-ID: 2a847e7a-2335-4c61-a191-093194c9e935
CSeq: 47564 OPTIONS
Max-Forwards: 70
User-Agent: FPBX-16.0.40.7(18.19.0)
Content-Length:  0


<--- Received SIP response (435 bytes) from UDP:10.0.0.121:5060 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.0.0.10:5060;rport=5060;branch=z9hG4bKPj6cbf9f42-3bc3-4d6a-9cc9-ebad4ffa44fa
From: <sip:[email protected]>;tag=12f91ea1-e93c-4412-8865-aaac4c0fe106
To: <sip:[email protected];line=3e6c53ea6b849df>;tag=1064570313
Call-ID: 2a847e7a-2335-4c61-a191-093194c9e935
CSeq: 47564 OPTIONS
Allow: REGISTER, INVITE, ACK, CANCEL, OPTIONS, BYE, INFO, NOTIFY
User-Agent: 2N IP Verso 2.40.0.53.4
Content-Length: 0


<--- Transmitting SIP request (405 bytes) to UDP:10.0.0.122:5060 --->
OPTIONS sip:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 10.0.0.10:5060;rport;branch=z9hG4bKPj641d32fd-11d3-4eb2-9929-f4371e7a7ec5
From: <sip:[email protected]>;tag=f607590d-b3dd-400f-8008-594ea916fbc5
To: <sip:[email protected]>
Contact: <sip:[email protected]:5060>
Call-ID: 9d239c2c-aed5-490e-a3f1-19652e6a944b
CSeq: 702 OPTIONS
Max-Forwards: 70
User-Agent: FPBX-16.0.40.7(18.19.0)
Content-Length:  0


<--- Received SIP response (481 bytes) from UDP:10.0.0.122:5060 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.0.0.10:5060;rport=5060;branch=z9hG4bKPj641d32fd-11d3-4eb2-9929-f4371e7a7ec5
From: <sip:[email protected]>;tag=f607590d-b3dd-400f-8008-594ea916fbc5
To: <sip:[email protected]>;tag=1078813181
Call-ID: 9d239c2c-aed5-490e-a3f1-19652e6a944b
CSeq: 702 OPTIONS
Supported: replaces, path, eventlist
User-Agent: Grandstream GXV3275 1.0.3.227
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE, MESSAGE
Content-Length: 0


freepbx*CLI> answer
No such command 'answer' (type 'core show help answer' for other possible commands)
freepbx*CLI>
freepbx*CLI>
freepbx*CLI>
freepbx*CLI>
<--- Transmitting SIP request (425 bytes) to UDP:147.135.128.132:5060 --->
OPTIONS sip:sip.linhome.org:5060 SIP/2.0
Via: SIP/2.0/UDP 10.0.0.10:5060;rport;branch=z9hG4bKPj26430b27-3e9f-4da1-8234-d13dc01123b6
From: <sip:[email protected]>;tag=35545c3a-1796-4aba-b5b1-0f348e36d746
To: <sip:sip.linhome.org>
Contact: <sip:[email protected]:5060>
Call-ID: ddee89e4-c48c-43ce-a448-3c0b5a0cd0db
CSeq: 37035 OPTIONS
Max-Forwards: 70
User-Agent: FPBX-16.0.40.7(18.19.0)
Content-Length:  0


<--- Received SIP response (346 bytes) from UDP:147.135.128.132:5060 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.0.0.10:5060;rport=5060;branch=z9hG4bKPj26430b27-3e9f-4da1-8234-d13dc01123b6;received=85.123.123.123
From: <sip:[email protected]>;tag=35545c3a-1796-4aba-b5b1-0f348e36d746
To: <sip:sip.linhome.org>;tag=6cFDpt5D3yDjr
Call-ID: ddee89e4-c48c-43ce-a448-3c0b5a0cd0db
CSeq: 37035 OPTIONS
Content-Length: 0


<--- Received SIP response (974 bytes) from UDP:147.135.128.132:5060 --->
SIP/2.0 200 Ok
Via: SIP/2.0/UDP 10.0.0.10:5060;received=85.123.123.123;rport=5060;branch=z9hG4bKPjfcd4a473-d6ae-42f1-901d-95643ee76b2b
Record-Route: <sip:147.135.128.132:5060;lr>
From: "Hall" <sip:[email protected]>;tag=16ddc5e0-7fe5-447e-8452-a2c84115613e
To: <sip:[email protected]>;tag=lFD9l19
Call-ID: b1fcc222-dbe3-464c-aebc-e4a9c4b3a217
CSeq: 13693 INVITE
Contact: <sip:[email protected];gr=urn:uuid:faf74411-dd7c-00a3-8ac0-185056f63d2c>;+sip.instance="<urn:uuid:faf74411-dd7c-00a3-8ac0-185056f63d2c>";+org.linphone.specs="lime"
User-Agent: Linhome/1.2 (OnePlus Nord CE 5G) LinphoneSDK/5.2.65-pre.2+5688d2a (release/5.2)
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO, PRACK, UPDATE
Supported: replaces, outbound, gruu, path
Content-Type: application/sdp
Content-Length: 125

v=0
o=mysipaccount 2384 808 IN IP4 10.0.0.194
s=Talk
c=IN IP4 147.135.128.132
t=0 0
m=audio 16738 RTP/AVP 0 8
a=rtcp:16739

<--- Transmitting SIP request (494 bytes) to UDP:147.135.128.132:5060 --->
ACK sip:[email protected];gr=urn:uuid:faf74411-dd7c-00a3-8ac0-185056f63d2c SIP/2.0
Via: SIP/2.0/UDP 10.0.0.10:5060;rport;branch=z9hG4bKPj2e866493-5dd8-4daf-b137-21b1d55d3abb
From: "Hall" <sip:[email protected]>;tag=16ddc5e0-7fe5-447e-8452-a2c84115613e
To: <sip:[email protected]>;tag=lFD9l19
Call-ID: b1fcc222-dbe3-464c-aebc-e4a9c4b3a217
CSeq: 13693 ACK
Route: <sip:147.135.128.132:5060;lr>
Max-Forwards: 70
User-Agent: FPBX-16.0.40.7(18.19.0)
Content-Length:  0


<--- Transmitting SIP response (951 bytes) to UDP:10.0.0.32:63280 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.0.0.32:63280;rport=63280;received=10.0.0.32;branch=z9hG4bKPjfd65418a95424d989bde408c8374a166
Call-ID: 3c2cc841adf147cfa4086e98f9fb1e4e
From: "225" <sip:[email protected]>;tag=b0f123ddd39f486d8520f43179902d42
To: <sip:[email protected]>;tag=9eaa2aea-c210-4418-960f-1352af82639e
CSeq: 26207 INVITE
Server: FPBX-16.0.40.7(18.19.0)
Allow: OPTIONS, INVITE, ACK, BYE, CANCEL, UPDATE, PRACK, REGISTER, SUBSCRIBE, NOTIFY, PUBLISH, MESSAGE, REFER
Contact: <sip:10.0.0.10:5060>
Supported: 100rel, timer, replaces, norefersub
P-Asserted-Identity: "Linhome (Available)" <sip:[email protected]>
Content-Type: application/sdp
Content-Length:   279

v=0
o=- 3908693585 3908693587 IN IP4 10.0.0.10
s=Asterisk
c=IN IP4 10.0.0.10
t=0 0
m=audio 18354 RTP/AVP 0 8 9 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:9 G722/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=maxptime:150
a=sendrecv

<--- Received SIP request (392 bytes) from UDP:10.0.0.32:63280 --->
ACK sip:10.0.0.10:5060 SIP/2.0
Via: SIP/2.0/UDP 10.0.0.32:63280;rport;branch=z9hG4bKPjc2ae1c9f529a410399a64e5505bcef52
Max-Forwards: 70
From: "225" <sip:[email protected]>;tag=b0f123ddd39f486d8520f43179902d42
To: <sip:[email protected]>;tag=9eaa2aea-c210-4418-960f-1352af82639e
Call-ID: 3c2cc841adf147cfa4086e98f9fb1e4e
CSeq: 26207 ACK
User-Agent: Blink 3.2.0 (Windows)
Content-Length:  0


<--- Transmitting SIP request (403 bytes) to UDP:10.0.0.2:5066 --->
OPTIONS sip:[email protected]:5066 SIP/2.0
Via: SIP/2.0/UDP 10.0.0.10:5060;rport;branch=z9hG4bKPj9a3bc348-fd91-447b-adc0-e7eda1926465
From: <sip:[email protected]>;tag=4e5ab646-ff28-44ee-aab4-b13d96d6e6dd
To: <sip:[email protected]>
Contact: <sip:[email protected]:5060>
Call-ID: b7a268e6-b77d-4668-a258-53127cef1356
CSeq: 52471 OPTIONS
Max-Forwards: 70
User-Agent: FPBX-16.0.40.7(18.19.0)
Content-Length:  0


<--- Received SIP response (475 bytes) from UDP:10.0.0.2:5066 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.0.0.10:5060;rport=5060;branch=z9hG4bKPj9a3bc348-fd91-447b-adc0-e7eda1926465
From: <sip:[email protected]>;tag=4e5ab646-ff28-44ee-aab4-b13d96d6e6dd
To: <sip:[email protected]>;tag=278158032
Call-ID: b7a268e6-b77d-4668-a258-53127cef1356
CSeq: 52471 OPTIONS
Supported: replaces, path, timer, eventlist
User-Agent: Grandstream HT818 1.0.45.2
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE
Content-Length: 0


<--- Transmitting SIP request (403 bytes) to UDP:10.0.0.2:5074 --->
OPTIONS sip:[email protected]:5074 SIP/2.0
Via: SIP/2.0/UDP 10.0.0.10:5060;rport;branch=z9hG4bKPjac7aef59-d0e9-42e4-a06c-086753fb596a
From: <sip:[email protected]>;tag=86142928-66f6-4188-8550-d46055853a49
To: <sip:[email protected]>
Contact: <sip:[email protected]:5060>
Call-ID: 9003ea54-f755-4c54-8bb8-6d1ac9249369
CSeq: 31285 OPTIONS
Max-Forwards: 70
User-Agent: FPBX-16.0.40.7(18.19.0)
Content-Length:  0


<--- Received SIP response (475 bytes) from UDP:10.0.0.2:5074 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.0.0.10:5060;rport=5060;branch=z9hG4bKPjac7aef59-d0e9-42e4-a06c-086753fb596a
From: <sip:[email protected]>;tag=86142928-66f6-4188-8550-d46055853a49
To: <sip:[email protected]>;tag=887375380
Call-ID: 9003ea54-f755-4c54-8bb8-6d1ac9249369
CSeq: 31285 OPTIONS
Supported: replaces, path, timer, eventlist
User-Agent: Grandstream HT818 1.0.45.2
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE
Content-Length: 0


<--- Transmitting SIP request (403 bytes) to UDP:10.0.0.2:5060 --->
OPTIONS sip:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 10.0.0.10:5060;rport;branch=z9hG4bKPj4a120a6f-0b2f-410a-91c3-2b2faca9e1e4
From: <sip:[email protected]>;tag=5dc0fb60-cd8c-4c2d-a061-4276a578b721
To: <sip:[email protected]>
Contact: <sip:[email protected]:5060>
Call-ID: f9fe3dc8-4f49-4510-859e-e065870bcb22
CSeq: 21607 OPTIONS
Max-Forwards: 70
User-Agent: FPBX-16.0.40.7(18.19.0)
Content-Length:  0


<--- Received SIP response (475 bytes) from UDP:10.0.0.2:5060 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.0.0.10:5060;rport=5060;branch=z9hG4bKPj4a120a6f-0b2f-410a-91c3-2b2faca9e1e4
From: <sip:[email protected]>;tag=5dc0fb60-cd8c-4c2d-a061-4276a578b721
To: <sip:[email protected]>;tag=628801568
Call-ID: f9fe3dc8-4f49-4510-859e-e065870bcb22
CSeq: 21607 OPTIONS
Supported: replaces, path, timer, eventlist
User-Agent: Grandstream HT818 1.0.45.2
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE
Content-Length: 0


<--- Transmitting SIP request (428 bytes) to UDP:147.135.128.132:5060 --->
OPTIONS sip:sip.linphone.org SIP/2.0
Via: SIP/2.0/UDP 10.0.0.10:5060;rport;branch=z9hG4bKPj9b5c6dce-fb19-4fab-aafc-a1b39a68ece6
From: <sip:[email protected]>;tag=6c169655-34b9-4ef9-b8e8-22ca19b68191
To: <sip:sip.linphone.org>
Contact: <sip:[email protected]:5060>
Call-ID: 13694c40-8560-4969-ac2e-bd4e25569001
CSeq: 24276 OPTIONS
Max-Forwards: 70
User-Agent: FPBX-16.0.40.7(18.19.0)
Content-Length:  0


<--- Received SIP response (350 bytes) from UDP:147.135.128.132:5060 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.0.0.10:5060;rport=5060;branch=z9hG4bKPj9b5c6dce-fb19-4fab-aafc-a1b39a68ece6;received=85.123.123.123
From: <sip:[email protected]>;tag=6c169655-34b9-4ef9-b8e8-22ca19b68191
To: <sip:sip.linphone.org>;tag=2e013r44399ca
Call-ID: 13694c40-8560-4969-ac2e-bd4e25569001
CSeq: 24276 OPTIONS
Content-Length: 0


freepbx*CLI> off
No such command 'off' (type 'core show help off' for other possible commands)
<--- Received SIP request (548 bytes) from UDP:147.135.128.132:5060 --->
BYE sip:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 147.135.128.132;rport;branch=z9hG4bK.Sv2aXa0X5FSjQtDKtggj8pDpBg
Via: SIP/2.0/UDP 10.0.0.194:49862;branch=z9hG4bK.3fboERx1S;rport=1099;received=85.123.123.123
From: <sip:[email protected]>;tag=lFD9l19
To: "Hall" <sip:[email protected]>;tag=16ddc5e0-7fe5-447e-8452-a2c84115613e
CSeq: 111 BYE
Call-ID: b1fcc222-dbe3-464c-aebc-e4a9c4b3a217
Max-Forwards: 69
User-Agent: Linhome/1.2 (OnePlus Nord CE 5G) LinphoneSDK/5.2.65-pre.2+5688d2a (release/5.2)
Content-Length: 0


<--- Transmitting SIP response (472 bytes) to UDP:147.135.128.132:5060 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 147.135.128.132;rport=5060;received=147.135.128.132;branch=z9hG4bK.Sv2aXa0X5FSjQtDKtggj8pDpBg
Via: SIP/2.0/UDP 10.0.0.194:49862;rport=1099;received=85.123.123.123;branch=z9hG4bK.3fboERx1S
Call-ID: b1fcc222-dbe3-464c-aebc-e4a9c4b3a217
From: <sip:[email protected]>;tag=lFD9l19
To: "Hall" <sip:[email protected]>;tag=16ddc5e0-7fe5-447e-8452-a2c84115613e
CSeq: 111 BYE
Server: FPBX-16.0.40.7(18.19.0)
Content-Length:  0


<--- Transmitting SIP request (431 bytes) to UDP:10.0.0.32:63280 --->
BYE sip:[email protected]:63280 SIP/2.0
Via: SIP/2.0/UDP 10.0.0.10:5060;rport;branch=z9hG4bKPj76aeb4a8-09cf-448f-8f90-ccfb6b976b95
From: <sip:[email protected]>;tag=9eaa2aea-c210-4418-960f-1352af82639e
To: "225" <sip:[email protected]>;tag=b0f123ddd39f486d8520f43179902d42
Call-ID: 3c2cc841adf147cfa4086e98f9fb1e4e
CSeq: 18385 BYE
Reason: Q.850;cause=16
Max-Forwards: 70
User-Agent: FPBX-16.0.40.7(18.19.0)
Content-Length:  0


<--- Received SIP response (381 bytes) from UDP:10.0.0.32:63280 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.0.0.10:5060;rport=5060;received=10.0.0.10;branch=z9hG4bKPj76aeb4a8-09cf-448f-8f90-ccfb6b976b95
Call-ID: 3c2cc841adf147cfa4086e98f9fb1e4e
From: <sip:[email protected]>;tag=9eaa2aea-c210-4418-960f-1352af82639e
To: "225" <sip:[email protected]>;tag=b0f123ddd39f486d8520f43179902d42
CSeq: 18385 BYE
Server: Blink 3.2.0 (Windows)
Content-Length:  0


<--- Transmitting SIP request (410 bytes) to UDP:10.0.0.1:5060 --->
OPTIONS sip:10.0.0.1 SIP/2.0
Via: SIP/2.0/UDP 10.0.0.10:5060;rport;branch=z9hG4bKPjae45759c-5638-4710-acc8-0c60ead867ac
From: <sip:[email protected]>;tag=e63897f9-de2d-4b5f-b4dd-b9dc4dcdec8c
To: <sip:10.0.0.1>
Contact: <sip:[email protected]:5060>
Call-ID: 59400343-f57b-46cb-837c-87e99a9db131
CSeq: 38138 OPTIONS
Max-Forwards: 70
User-Agent: FPBX-16.0.40.7(18.19.0)
Content-Length:  0


<--- Transmitting SIP request (410 bytes) to UDP:10.0.0.1:5060 --->
OPTIONS sip:10.0.0.1 SIP/2.0
Via: SIP/2.0/UDP 10.0.0.10:5060;rport;branch=z9hG4bKPjae45759c-5638-4710-acc8-0c60ead867ac
From: <sip:[email protected]>;tag=e63897f9-de2d-4b5f-b4dd-b9dc4dcdec8c
To: <sip:10.0.0.1>
Contact: <sip:[email protected]:5060>
Call-ID: 59400343-f57b-46cb-837c-87e99a9db131
CSeq: 38138 OPTIONS
Max-Forwards: 70
User-Agent: FPBX-16.0.40.7(18.19.0)
Content-Length:  0

david55 · November 11, 2023, 6:29pm

I assume that Blink is the only thing using Windows, and the one that cannot send audio In that case the issue would have to be with the local source port, which is defined by Blink and might well be any value >= 1024. It’s using 50048 and 500049 in the specific call in the log/

Asterisk isn’t correctly configured for use through NAT. It is transmitting its private address, when it should be transmitting its public address. LinPhone seem to be handling that OK for signalling, and for media towards Asterisk, so it would be surprising if they rejected the media from Asterisk.

Stewart1 · November 11, 2023, 7:43pm

This is very strange, as it would seem that Windows Firewall is somehow blocking the outbound RTP, while allowing inbound RTP between the same address and port endpoints; with default settings this would be pretty unlikely. I have run many softphones under Windows and never needed any special firewall settings, other than what Windows requests and automatically sets when the app is run for the first time.

You could troubleshoot by capturing a failing call with tcpdump on the PBX, copying the .pcap to your PC and examining it with Wireshark. Look at whether Blink is sending RTP and whether Asterisk is passing it on to linhome. If it appears to be flowing ok, you can check whether codecs and packetization are correct and listen to the actual sound. If Blink is sending RTP but Asterisk not passing, look at whether Blink’s source port matches the destination port to which Asterisk is sending.

Another approach is to see whether a simpler situation fails. For example, set Blink to offer only ulaw (a.k.a. PCMU or G.711u) and not offer zrtp. Also, check whether calling from Blink to another internal extension fails. You might try a different softphone such as MicroSIP or PhonerLite.

pgr · November 13, 2023, 12:33pm

@david55 how should I set this straight (if you think it’s worth the effort)? I am running a VM as downloaded from the FreePBX site:

PBX Version: 16.0.40.7
PBX Distro:12.7.8-2306-1.sng7
Asterisk Version: 18.19.0

I didn’t change any settings pertaining to NAT (at least, not deliberately ), so it should currently be all defaults. I also confess I’ve heard of NAT but don’t fully grasp when it’s used, how, etc.

Do you recommend I take any steps to improve the NAT configurations? Thanks for any advice.

pgr · November 13, 2023, 12:40pm

@Stewart1 with more tests I am coming to realize the situation is a bit more ambiguous than I thought. Typically this is what I see:

I try to place the call and sound is only one-way
I turn off Windows firewall completely and now I get a proper call with two-way audio
Later, still without firewall, I get the same problem again.

Since I am only using Blink for convenience when testing remotely through a Anydesk session, I’m thinking maybe I shouldn’t spend too many efforts solving random windows problems. If the calls work properly from physical phones to smartphone apps, that’s perfectly enough for me. And it seems they do.

So, I am intrigued, but will probably leave this for a moment, until I have occasion to do more tests locally. In that case, if I run into trouble, I will try to use your suggestions regarding tcpdump and Wireshark.

I still haven’t configured anything in the router’s firewall, so maybe I will end up discovering that that is where the problem is - if there is a problem.

Thank you!

system · December 14, 2023, 12:41pm

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