[asterisk-users] Cisco SPA303 won't ring for more than 60 seconds

[jg]

I just checked the Snom phone on my desk and it turned out that the phone has an internal timing 
value of 120s for invitations (ringing_time). This value cannot be set using the web interface 
for my phone. I also checked a Cisco phone, but I did not find a similar setting. It doesn't 
matter, but the the Snom phone returned <Got SIP response 486 "Busy Here" back from ...>.

Now, I do think it is a phone setting and it might be hard coded.

jg