Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations Mike Lewis on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

SIP Trunk gets 503 Service Unavailable

Status
Not open for further replies.
InteropPbxs

InteropPbxs

Programmer
Sep 19, 2008
3
US
I am routing a call using SIP into the Mitel. I am getting a 503 Service Unavailable response. In this case the RequestURI and To is a user registered on a 5212 phone. The From is an unknown user and is not data filled on Mitel.

I verified that I am hitting the Sip Peer because I can toggle on/off the "Authentication Option for Incoming Calls". When set to "Challenge-based" the call is correctly challenged.

Any ideas as to what is causing the 503 Service Unavailable response.
 
Status
Not open for further replies.

Similar threads

sadic
  • Locked
  • Question
no outgoing via sip trunk
Replies
7
Views
642
sadic
sadic
Tinos
  • Locked
  • Question
MIVB SIP Trunk to Provider 3
Replies
4
Views
755
Tinos
Tinos
W
  • Locked
  • Question
How do you block specific numbers SIP trunk?
Replies
2
Views
436
jerdog101
jerdog101
MarvinJK
  • Locked
  • Question
Incoming calls via SIP trunk on Auto-Attendant
Replies
11
Views
364
MarvinJK
MarvinJK
Johnniehec
  • Locked
  • Question
SIP Trunk ARS
Replies
7
Views
237
Johnniehec
Johnniehec

Part and Inventory Search

Sponsor

Back
Top