SIP Trunk from another Asterisk server

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假如有两个Asterisk Servers, Asterisk A and B. Asterisk A有很多资源给Asterisk B拨打。那么我们在Asterisk A建立一个SIP account。

Asterisk A  (hostname: server_A.abc.org)

sip.conf

1. [2403]
   
2. type=friend
   
3. username=2403
   
4. secret=2403_password
   
5. qualify=yes
   
6. nat=yes
   
7. host=dynamic
   
8. canreinvite=no
   
9. disallow=all
   
10. allow=ulaw,alaw,gsm
    
11. context=internal

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Asterisk B side

sip.conf

1. [general]
   
2. disallow=all
   
3. allow=ulaw,alaw,gsm
   
4. nat=yes
   
5. canreinvite=no
   
6. qualify=yes
   
7. context=fron-desk
   
8. 
   
9. register => 2403:2403_password@server_A.abc.org/from-2403
   
10. 
    
11. [6001]
    
12. type=friend
    
13. secret=6001_password
    
14. host=dynamic
    
15. context=internal
    
16. 
    
17. [6002]
    
18. type=friend
    
19. secret=6002_password
    
20. host=dynamic
    
21. context=internal
    
22. 
    
23. [serva-A]
    
24. type=friend
    
25. username=2403
    
26. secret=2403_password
    
27. host=serva_A.abc.org
    
28. insecure=port,invite
    
29. context=from-server-A

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extensions.conf

1. [to-server-A]
   
2. exten => _7.,1,Dial(SIP/server-A/${EXTEN:1},,)
   
3. 
   
4. [internal]
   
5. include => to-server-A
   
6. 
   
7. exten => 6001,1,Dial(SIP/6001,,r)
   
8. exten => 6002,1,Dial(SIP/6002,,r)
   
9. 
   
10. [from-server-A]
    
11. from-2403,1,Dial(SIP/6002,,)

複製代碼

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