[asterisk-users] Dial plan question: PSTN via Linksys SPA3102 then IAX if busy?

[Chris Blunt]

Hi All, 

 

In our small office calls to the PSTN are currently sent via Asterisk and a
Linksys SPA3102 (1 x FXO and 1 x FXS):

 

            SIP Phone --> Asterisk --> Linksys SPA3102 --> PSTN

 

If the PSTN is in use on SPA3102 I need a way to get the call to then route
out over IAX termination.

 

            SIP Phone --> Asterisk--> Linksys SPA3102 --> PSTN (In Use) -->
Use IAX

 

Can any one help me with some dial plan logic for this; I'm confused as to
the best way around this?

 

Thanks in advance

 

Chris

 

 

--

 

Chris Blunt

Entropy IT Ltd

 

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