[asterisk-users] Wanted: tutorial on troubleshooting SIP issues

[Steve Edwards]

On Fri, 9 Nov 2007, joakimsen at gmail.com wrote:

> On Nov 8, 2007 7:11 PM, Philip Prindeville
> <philipp_subx at redfish-solutions.com> wrote:
>>
>> Anyway, pointers for someone wanting to learn to quickly diagnose SIP
>> conversations would be great.
>
> Read rfc2543, rfc3261 & rfc3265. Otherwise what you want to do is akin
> to trying to diagnose a nuclear reactor and not wanting to learn about
> nuclear physics!

I disagree. A "triage" nurse does not need to know as much as a surgeon to 
save lives.

For someone who understands the protocol (not me), it would be very 
helpful for the rest of us to have an example of various "conversations" 
with each message illustrated as an screen shot of the Asterisk console 
with "sip debug on" and the important bits circled in red.

Kind of like what my cellular company does when they try to explain my 
bill -- of course, I don't think they really want me to understand it in 
the first place :)

Examples of what I'd like to see:

1) A SIP telephone registering successfully.

2) A SIP telephone failing to register for reasons x, y, and z.

3) An incoming call being accepted.

4) An incoming call being rejected for reasons x, y, and z.

5) An outgoing call being accepted.

6) An outgoing call being rejected for reasons x, y, and z.

This type of explanation would help 90% of the users solve 90% of their 
issues without having to learn the minutia of the protocol.

Oh, and I want the same for IAX!

Thanks in advance,
------------------------------------------------------------------------
Steve Edwards      sedwards at sedwards.com      Voice: +1-760-468-3867 PST
Newline                                             Fax: +1-760-731-3000