Hi All,
I am sending Register messages from our MiVoice Office 250 to one of our service provider through Adtran 908e. What I observed is MiVoice Office 250 is constructing Register messages as required by the service provider but Adtran is responding with 501 method not implemented.
Please find the below SIP messages. What could be the possible reason ?
Request-Line: REGISTER sip:IPINET1.com:5060 SIP/2.0
Message Header
Via: SIP/2.0/UDP 192.168.10.162:5060;branch=z9hG4bK1448869845-968
Route: <sip:192.168.10.236:5060;lr>,<sip:209.115.XXX.XXX:5060;lr>
Max-Forwards: 70
Allow: NOTIFY,REGISTER,REFER,SUBSCRIBE,INFO,INVITE,ACK,OPTIONS,CANCEL,BYE
User-Agent: Mitel-5000-ICP-6.2.5.93
From: <sip:p587XXX@IPINET1.com>;tag=Mitel-5000_1448870625-968
To: <sip:p587XXX@IPINET1.com>
Call-ID: 1448867239-968
CSeq: 1 REGISTER
Expires: 1800
Contact: "p587XXX" <sip:p587XXX@192.168.10.162:5060>
Content-Length: 0
Session Initiation Protocol (501)
Status-Line: SIP/2.0 501 Not Implemented
Message Header
From: <sip:p587XXX@IPINET1.com>;tag=Mitel-5000_1448870625-968
To: <sip:p587XXX@IPINET1.com>;tag=4fceacc8-7f000001-13c4-3dd-3649280-3dd
Call-ID: 1448867239-968
CSeq: 1 REGISTER
Via: SIP/2.0/UDP 192.168.10.162:5060;branch=z9hG4bK1448869845-968
Content-Length: 0
Do you have sip transparent proxy enabled? A copy of the configuration with passwords and sensitive information redacted would be useful.
did you get this one fixed... i have had a similar problem that was the Adtran was not able to act as a true B2B and do digest on both sides?
These messages are standard responses when the ITSP is doing keep alives to keep the trunk active and check for availability of the Adtran. If the trunk is up and working then these messages can be ignored.
John W