sip making a call - 401 Unauthorized

2
votes

I am working on a sip client. I'm monitoring with wireshark the sip packets.

Register with the sip server works fine

When making a call I have this:

Client - INVITE message Server - 401 UNAUTHORIZED Client - INVITE message Server - 403 Forbidden

I do not have access to the server. What could go wrong? Why can't I make a call?

What is with that 401 and than 403 if registered worked ok?

4
sipasterisk
how you have solved the problem, i am facing the same issue. – theburningfire

4 Answers

2
votes

That is noramal. Server ask for authorization(401). After that it say authorization incorrect.

That is normal behavour for any of this:

1) You use incorrect secret for this username

2) You use domain name/realm which is incorrect and domain name/realm is set on server.

If registration work ok, can be

1) Server work with registration different way - contact server support

2) You dialling in incorrect format or this number not allowed to call with your extension.

-1
votes

Another reason for that error: device trying to register is not sending authentication.

while the server may request authentication

-1
votes

It is an old thread but maybe it helps someone: sip server can be in a night/holiday mode which may require different access levels for clients.

-1
votes

you need to send to telco your sip credentials...need to changed your sip credentials parameter..to make you authorized for outgoing call