[Asterisk-Users] How to best debug SIP registration failure

[Olle E. Johansson]

George Pajari wrote:

> I am having trouble getting SIP phones to register with Asterisk. I know
> that the phone can register with FWD and I have used tcpdump to see the
> registration packets arrive at the Asterisk server, but nothing goes back.
> 
> How should I attack the problem?
> 
> What debugging tools exist to try to determine why Asterisk is not
> accepting the registration requests?
> 
> I have googled for answers but no one seems to have posted a general
> approach to attacking such problem, or, if they have, I missed it.
Start asterisk with a lot of verbose and debug, i.e.
   asterisk -vvvvvvvvvvvvvvvrd

And then turn on "sip debug".

/O