asterisk users - Nov 2003 - Can anyone give me an example of sip.conf and extensions.conf about asterisk SIP Proxy server?

Hi, all,
I am a beginner of asterisk SIP, now I have 3 pc, one runs asterisk as a SIP
proxy, and the other two run softphone(Ubiquity) as User Agents. As below:
 
User Agent <------------> Proxy Server <----------------> User Agent
(Ubiquity)                     Asterisk SIP                        (Ubiquity)
 
My sip.conf and extensions.conf is as follows:
 
sip.conf

[general]

port = 5060           

bindaddr = 0.0.0.0    

allow=all             

context = bogon-calls 

[2000]



type=friend           

username=2000         

secret=9overthruster7 

host=dynamic          

context=from-sip      



[2001]                

type=friend

username=2001

secret=11bbanzai9

host=dynamic

context=from-sip




extensions.conf
[general]

static=yes       

writeprotect=yes 

[bogon-calls]





exten => _.,1,Congestion 



[from-sip]

exten => 2000,1,Dial(SIP/2000,20)

exten => 2000,102,Hangup

exten => 2001,1,Dial(SIP/2001,20)

exten => 2001,102,Hangup

 

But these files don't work! The proxy server always shows :

        SIP/2.0 503 Service Unavailable

I don't know how to do. Need I set up another PC as a Registrar Server?  Can
anyone

give me suggestions about the sip.conf and extensions.conf?

 

 



Regards,

======Lv Qian,
Ph.D Student,
School of Computer Engineering,
Nanyang Technological University,
Singapore 639798
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