[Freeswitch-users] Reasons for call dropped/RFC2543 incompatible destination

[Robert Fitzjohn]

Hello,
FreeSwitch v. 1.6.20
I'm calling my own mobile no. via my localphone gateway, and while this
used to work when I last tested it a while ago, recently the call no longer
goes through, with freeswitch dropping the call with the RFC2543 warning
and then 'incompatible destination'. Codecs on both sides look good &
calling other mobile numbers on other networks via the same gateway works
fine, for what it's worth.

The fuller/anonymized paste is at:
https://pastebin.freeswitch.org/view/ddafee03 but the bits which I think
matter are below.
Could someone give me any hints as to whether this is a FS issue or whether
the problem lies with my gateway or otherwise.

Thanks

- recv 1205 bytes from udp/[94.0.0.0]:5060 at 10:21:18.751270:
-
 ------------------------------------------------------------------------
-    SIP/2.0 183 Session Progress
-    Via: SIP/2.0/UDP 45.0.0.0:5080;rport=5080;branch=z9hG4bKHNUQK4208H7Br
-    Record-Route: <sip:95.0.0.0:5070
;lr;ftag=lp-2k9-5ee88476-00002a55-0005d2b3R2d70439b.a>,<sip:94.1.1.1;lr=on>,<sip:94.0.0.0;lr=on;ftag=B3N7U1NHeem0F;an=YWJjREVENjg5JiUnPDkyE2laNj48LXtVYWEGaiYpXA-->
-    To: <sip:447970000000 at proxy.localphone.com
>;tag=lp-2k9-5ee88476-00002a55-0005d2b3R2d70439b.b
-    From: "Robert" <sip:1234567 at localphone.com>;tag=B3N7U1NHeem0F
-    Call-ID: 45818239-b574-1239-8a8e-5600002a6bbb
-    CSeq: 29244045 INVITE
-    Allow:
PUBLISH,MESSAGE,PRACK,SUBSCRIBE,REFER,INFO,NOTIFY,OPTIONS,BYE,INVITE,ACK,CANCEL
-    Contact: <sip:94.2.2.2;did=2d6.a9862935>
-    Content-Type: application/sdp
-    Content-Length: 474
-
-    v=0
-    o=UK1-SBC-15-1 70259913 70259914 IN IP4 0.0.0.0
-    s=sip call
-    c=IN IP4 0.0.0.0
-    t=0 0
-    m=audio 0 RTP/SAVP 18 8 0 101
-    a=rtpmap:18 G729/8000
-    a=fmtp:18 annexb=no
-    a=rtpmap:8 PCMA/8000
-    a=rtpmap:0 PCMU/8000
-    a=rtpmap:101 telephone-event/8000
-    a=fmtp:101 0-15
-    a=ptime:20
-    m=audio 0 RTP/AVP 18 8 0 101
-    a=rtpmap:18 G729/8000
-    a=fmtp:18 annexb=no
-    a=rtpmap:8 PCMA/8000
-    a=rtpmap:0 PCMU/8000
-    a=rtpmap:101 telephone-event/8000
-    a=fmtp:101 0-15
-    a=ptime:20
-    a=nortpproxy:yes
-
 ------------------------------------------------------------------------
- 2020-12-10 10:21:18.738771 [DEBUG] sofia.c:7084 Channel
sofia/external/447970000000 entering state [proceeding][183]
- 2020-12-10 10:21:18.738771 [NOTICE] sofia.c:7192 Ring-Ready
sofia/external/447970000000!
- 2020-12-10 10:21:18.738771 [DEBUG] switch_channel.c:3346
(sofia/external/447970000000) Callstate Change DOWN -> RINGING
- 2020-12-10 10:21:18.738771 [DEBUG] sofia.c:7084 Channel
sofia/external/447970000000 entering state [proceeding][183]
- 2020-12-10 10:21:18.738771 [DEBUG] sofia.c:7094 Remote SDP:
- v=0
- o=UK1-SBC-15-1 70259913 70259914 IN IP4 0.0.0.0
- s=sip call
- c=IN IP4 0.0.0.0
- t=0 0
- m=audio 0 RTP/SAVP 18 8 0 101
- m=audio 0 RTP/AVP 18 8 0 101


-
- 2020-12-10 10:21:18.738771 [WARNING] switch_core_media.c:3951 RFC2543
from March 1999 called; They want their 0.0.0.0 hold method back.....
- 2020-12-10 10:21:18.738771 [NOTICE] sofia.c:7273 Hangup
sofia/external/447970000000 [CS_CONSUME_MEDIA] [INCOMPATIBLE_DESTINATION]
- 2020-12-10 10:21:18.738771 [DEBUG] switch_core_state_machine.c:584
(sofia/external/447970000000) Running State Change CS_HANGUP (Cur 4 Tot 65)
- 2020-12-10 10:21:18.738771 [DEBUG] switch_core_state_machine.c:850
(sofia/external/447970000000) Callstate Change RINGING -> HANGUP
- 2020-12-10 10:21:18.738771 [DEBUG] switch_core_state_machine.c:852
(sofia/external/447970000000) State HANGUP
- 2020-12-10 10:21:18.738771 [DEBUG] mod_sofia.c:438 Channel
sofia/external/447970000000 hanging up, cause: INCOMPATIBLE_DESTINATION
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