[asterisk-users] Asterisk 13.1.0/PJSIP peer IP address issue

[Sonny Rajagopalan]

I am following the instructions in
https://wiki.asterisk.org/wiki/display/AST/Basic+PBX+Functionality and I am
trying to make a call from extension Alice (6001) to extension for Bob
(6002). When I make the call, I can hear the ringing on Alice's phone
(caller), but Bob's phone (callee) doesn't ring, or show a call coming in
from Alice. My setup and environment is as follows: Alice, Bob and Asterisk
all in the same 192.168.1.0/24 network, and they are able to register to
the Asterisk server running 13.1.0/PJSIP. The rest of the configuration is
the same as the aforementioned wiki page, but is shown here for clarity:

root at asterisk13FFP:/var/log/asterisk# more /etc/asterisk/extensions.conf
[from-internal]
exten=>6001,1,Dial(PJSIP/demo-alice)
exten=>6002,1,Dial(PJSIP/demo-bob)
exten=>6003,1,Answer()
same =>6003,n,Playback(hello-world)
same =>6003,n,Hangup()


What I do observe is that I when I request the output of pjsip show
endpoints, I get Contact information for the two SIP peers that have
registered different from their actual IP addresses. I suspect this has
something to do with their calls being routed elsewhere. If my assumption
is correct--how do I fix this? Alice should be at 192.168.1.50 and Bob
should be at 192.168.1.149, instead, they (both) show IP address
146.115.163.234. Any help is deeply appreciated. Thanks.

asterisk13FFP*CLI> pjsip show endpoints

 Endpoint:  <Endpoint/CID.....................................>
 <State.....>  <Channels.>
    I/OAuth:
 <AuthId/UserName...........................................................>
        Aor:  <Aor............................................>
 <MaxContact>
      Contact:  <Aor/ContactUri...............................>
 <Status....>  <RTT(ms)..>
  Transport:  <TransportId........>  <Type>  <cos>  <tos>
 <BindAddress..................>
   Identify:
 <Identify/Endpoint.........................................................>
        Match:  <ip/cidr.........................>
    Channel:  <ChannelId......................................>
 <State.....>  <Time(sec)>
        Exten: <DialedExten...........>  CLCID: <ConnectedLineCID.......>
 =========================================================================================

 Endpoint:  demo-alice
Unavailable   0 of inf
     InAuth:  demo-alice/demo-alice
        Aor:  demo-alice                                         1
      Contact:  demo-alice/sip:demo-alice@*146.115.163.234*:38519  Unknown
              nan

 Endpoint:  demo-bob                                             Not in use
   0 of inf
     InAuth:  demo-bob/demo-bob
        Aor:  demo-bob                                           1
      Contact:  demo-bob/sip:demo-bob@*146.115.163.234*:38321;tra  Unknown
              nan
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