[AusNOG] Vocus VoIP Support

[TWIG Security]

Hi List,
     I am having some issues with a Vocus/engin service when 
establishing OB calls.

Is there anyone here from Vocus Tech Support who can assist as I suspect 
the Help Desk will ask me to do irrelevant things, like power modem and 
check lights.

Issue is, call out on another trunk/service, all good.

Vocus/Engin:  Register and get incoming calls fine.
Call out on Engin/Vocus and get "all circuits are busy".
Wireshark traces shows:    Status-Line: SIP/2.0 480 Temporarily 
unavailable (see full trace below)


I think it is going to be by a wrong set of headers, but just no idea 
which one/ones.

Cheers,

Mal


sssssssss  = source number
dddddddddd = Dest number
xxx.xxx.xxx.xxx PBX Public IP



Session Initiation Protocol (480)
     Status-Line: SIP/2.0 480 Temporarily unavailable
         Status-Code: 480
         [Resent Packet: False]
         [Request Frame: 12]
         [Response Time (ms): 87]
     Message Header
         Via: SIP/2.0/UDP 
xxx.xxx.xxx.xxx:5060;received=xxx.xxx.xxx.xxx;branch=z9hG4bKPj779515e7-7386-4bbe-9289-b694567d61fe;rport=5060
             Transport: UDP
             Sent-by Address: xxx.xxx.xxx.xxx
             Sent-by port: 5060
             Received: xxx.xxx.xxx.xxx
             Branch: z9hG4bKPj779515e7-7386-4bbe-9289-b694567d61fe
             RPort: 5060
         From: 
<sip:ssssssssss at byo.engin.com.au>;tag=7bd4d908-9040-49ae-8ecc-98bc3cdc3ac8
             SIP from address: sip:ssssssssss at byo.engin.com.au
                 SIP from address User Part: ssssssssss
                 SIP from address Host Part: byo.engin.com.au
             SIP from tag: 7bd4d908-9040-49ae-8ecc-98bc3cdc3ac8
         To: 
<sip:dddddddddd at byo.engin.com.au>;tag=SD192tf99-1044127052-1785640335623
             SIP to address: sip:dddddddddd at byo.engin.com.au
                 SIP to address User Part: dddddddddd
                 SIP to address Host Part: byo.engin.com.au
             SIP to tag: SD192tf99-1044127052-1785640335623
         Call-ID: d663d240-5dc8-48ae-83ad-46beb11d663d
         [Generated Call-ID: d663d240-5dc8-48ae-83ad-46beb11d663d]
         CSeq: 1763 INVITE
             Sequence Number: 1763
             Method: INVITE
         Content-Length: 0