| 請看 this link http://www.telecom-cafe.com/foru ... &extra=page%3D2
 
 你需要 setup a dialplan from trixbox and spa3000 so that you can dial out after your softphone go into your trixbox.
 
 For example in my set up
 
 I have added this to my sip.conf
 
 [pstn-spa3k-d1]
 type = peer
 secret = password
 username = username
 host = 192.168.xxx.xxx ; ip of SPA3000
 fromuser = username
 port = 5061
 dtmfmode = rfc2833
 qualify = yes
 nat = yes
 context = default
 disallow = all
 allow = g729
 allow = ulaw
 allow = alaw
 
 When softphone dials in my asterisk, it responds with an IVR. Then I press 9+HK tel no, the asterisk will find the dialplan for pstn-spa3k-d1 for outgoing PSTN.
 P.s. the context of pstn-spa3k-d1  allows my asterisk to connect to spa3000 within my network. This saves me some money and hurdles to get a FXO card within the system
 
 I am not familiar with trixbox and so can't help you to configure.
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