Thirupathy, You will get more responce on these questions in the user list than in the dev list. Firstly can you actually see in the log that FreeSWITCH is registered on SIP? Secondly - what IP address do you connect to from your SIP phone? FreeSWITCH will be silence unless you hit the correct address. Jan _____ From: freeswitch-dev-bounces@lists.freeswitch.org [mailto:freeswitch-dev-bounces@lists.freeswitch.org] On Behalf Of Thirupathi Sent: 4. juli 2010 16:12 To: freeswitch-dev@lists.freeswitch.org Subject: [Freeswitch-dev] Unable to register with Freeswitch Hi, I have installed and running freeswitch on ubuntu. But when i am trying to register IP phone (localhost) with freeswitch (1001 and 1234) it is not happening. Also i don't receive any log in the freeswitch when i am trying to register the IP phone. How to fix this issue? Any one help me thanks in advance. Thanks and Regards, Thirupathi