[miro]

Hello
we have problem with registering 3CX PBX to Voiptalk SIP server, we recieve 403 Forbbiden - no OBP message:

REGISTER sip:77.240.48.94:5060 SIP/2.0
Via: SIP/2.0/UDP 10.160.250.130:5060;branch=z9hG4bK-d8754z-6e3ba13e9c40ca07-1---d8754z-;rport
Max-Forwards: 70
Contact:
To:
From: ;tag=244e0212
Call-ID: NGE3NGRmOWE0N2E2NjJkNTg3OWIxYTk3YTFlMTQ0N2E.
CSeq: 1 REGISTER
Expires: 60
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REGISTER, SUBSCRIBE, NOTIFY, REFER, INFO, MESSAGE
Supported: replaces
User-Agent: 3CXPhoneSystem 10.0.22539.0
Content-Length: 0

SIP/2.0 403 Forbidden - no OBP
Via: SIP/2.0/UDP 10.160.250.130:5060;branch=z9hG4bK-d8754z-6e3ba13e9c40ca07-1---d8754z-;rport=5060;received=89.201.173.151
To: ;tag=3eeda7e8f0549c38df1ae575f0b8a0ef.3534
From: ;tag=244e0212
Call-ID: NGE3NGRmOWE0N2E2NjJkNTg3OWIxYTk3YTFlMTQ0N2E.
CSeq: 1 REGISTER
Server: OpenSIPS (1.6.2-notls (i386/linux))
Content-Length: 0

We checked our Firewall and from that perspective everything is ok.

Could you please give us advice how to solve this problem.


Thanks.

[leejor]

OBP= Outbound Proxy

Are you missing something in your trunk settings?

http://www.voiptalk.org/products/3cx-pb ... setup.html

[davidbenwell]

Hi,

the outbound proxy should be set to nat.voiptalk.org

if you continue to get issues, you can leave this out and it should register ok.

the outbound proxy is not always required to get 3CX working with VoIPTalk.

[miro]

We tried again with template and it works ,thanks for help.