About ferhann.khan

ferhann.khan · 11-02-2015

Hello, We are using a cisco router with IOS version 12.4. Its purpose is to perform basic connectivity with ISP's SIP server. I have done NATing and it seems to be working fine. I can ping the ISP's SIP server and though portforwading the PBX is able...

ferhann.khan · 11-03-2015

thank you for you support.. I will wait for some time here and if nothing turns up then maybe i will post it in routing and switching.

ferhann.khan · 11-03-2015

i did try that before and it enabled traffic forwarding behind NAT but it disable sip packet inspection for NAT and because of that the embedded address translation feature got disabled (obviously) which we require for NATing to work correctly.

ferhann.khan · 11-03-2015

actually i did copy the relevant config and that is not the original issue. The router is not license for CUBE or any other VoIP functionality (besides nat sip service and sip-sbc) and its the one provided by the ISP to all the other customers where ...

ferhann.khan · 11-02-2015

I copied the config from another router provided by another ISP and they didnt do any additional voip configuration either? Any guess how that router is working fine?

ferhann.khan · 11-02-2015

The VoIP gateway is from Mitel. Cisco router was provided by the ISP with basic license i guess. As i mentioned before that any packet going through the router destined for ISP is being dropped by it if the port is 5060 over udp. I generated dummy ...

Member Since	‎11-02-2015 03:50 AM
Date Last Visited	‎08-18-2017 03:55 AM
Posts	9

User Statistics

User Activity

SIP NAT problem

thank you for you support.. I

i did try that before and it

actually i did copy the

I copied the config from

The VoIP gateway is from