[Asterisk-Users] Help on Asterisk and Client SIP setup

[Chrispen Chisvo]

hi

I have instaled Asterisk PBX on Linux SUSE.

Its is running well. 

I want to add extensions for a simple test. I have added the extensions like

add extension 137,1,Dial,IAX/192.168.1.37/137 into local   

what I am not clear of is IAX?

And my extensions are failing to register.

Unfortunaltely a client lite xlite will require me to specify username, 
password, and domain, and yet I am not clear where to define the user and the 
domain on the Asterisk PBX.

Anyone to help me setup an extension and the VOIP SIP client xlite: simple 
steps please.

-- 
Rgds
Chrispen Chisvo
Ecoweb Zimbabwe
Cell: +263 91 222 443
Tel: +263 4 758 194