[asterisk-users] HELP! I can't get my Cisco CP-7960G IP hardphone to register on my Asterisk VoIP IP PBX SIP Server with FreePBX GUI

[Duncan Turnbull]

> On 24/12/2020, at 6:39 PM, Turritopsis Dohrnii Teo En Ming <ceo at teo-en-ming.com> wrote:
> 
> Hi Duncan Turnbull,
> 
> I have finally managed to get my Cisco 7960 IP phone to register on my Asterisk PBX appliance on Christmas Eve 2020.
> 
> You can read my guide here:
> 
> Guide: Teo En Ming's Guide to Configuring Asterisk/FreePBX with Cisco 7960 IP Phones
> Link: http://lists.digium.com/pipermail/asterisk-users/2020-December/295581.html
> 
> However, there is still a problem. Please read Section 12. Do you know how to solve it?? Thank you.
> 

You will need to look at the packets to see what the replies are

It sounds like it could be a Do not disturb gone wrong

But if you see the sip request going to the right place you can see the error response and that might provide more information 

> Merry Christmas 2020!
> 
> 
You too