[Asterisk-Users] Asterisk with Zultys SIP gateway

[Dustin Wenz]

I'm trying to configure an Asterisk server to make inbound and  
outbound calls through a Zultys MX250 operating as a SIP media gateway.

This is my first experience with Asterisk, but from what I  
understand, I need to register the Asterisk system as a SIP device  
with the MX250. This is what I have in sip.conf under [general]:
register => asterisk:xxxx at mx250.mycompany.com

Doing this results in repeated messages at the Asterisk console:
NOTICE[2795]: chan_sip.c:4790 sip_reg_timeout:    -- Registration for  
'asterisk at mx250.mycompany.com' timed out, trying again

I'm confident that the request is reaching the Zultys system, because  
if I deliberately omit the password, I get:
WARNING[2795]: chan_sip.c:8656 handle_response_register: Forbidden -  
wrong password on authentication for REGISTER for 'asterisk' to  
'mx250.mycompany.com'

Does anyone have experience integrating Asterisk with a Zultys phone  
system that might be able to offer some tips?

Thanks!

     - .Dustin