Asterisk Connecting to Asterisk

Ok, what I want to do is connect Asterisk to another asterisk server ( a much larger one). I had it as far as making the connection… then it died… now I Have dial tone but no sip connection outgoing from my small server. Somehow the sip proxy went away. How do I get this back and tell the asterisk box to send it’s calls through that number/voip account. And recieve calls via that number? Right now when I dial out I get this error on the CLI…

I am new to this (in case you didn’t notice)any ideas…

Jul 9 04:54:07 NOTICE[4190]: pbx.c:1741 pbx_extension_helper: Cannot find extension context ‘sip’

post your config files. i have a feeling you did something like Goto(sip/somechannel…

i’m wondering if you need to look at setting up an IAX trunk between the two servers…