initiate google voice callback

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This is an enhancement request.

I wish I could use sipdroid with pbxes in a way that would make it trigger
a google voice callback to my gizmo5 account whenever I dial out a regular
phone number.

Since Google voice can callback a gizmo5 number for free, and then connect
you to any number in the us or canada, it allows for completely free calls
to the USA and Canada.

Sipsorcery.com has this features, and I am using it successfully by linking
it to pbxes, but I wish it would work from pbxes alone.

Sipsorcery uses a dial plan to achieve this. In this dial plan, you specify
a google account username and password, as well as the callback number you
wish to use. The syntax goes like this : GoogleVoiceCall(string
emailAddress, string password, string forwardingNumber, string
destinationNumber, string fromUserToMatch, int phoneType, int callbackTimeout).

Sipsorcery is open source, so, I guess you could have a look at their code
to see how this feature was implemented. Be warned, they use a very slow
Silverlight web interface.

Thanks!

Original issue reported on code.google.com by stane...@gmail.com on 30 Dec 2009 at 7:47

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Original comment by pmerl...@googlemail.com on 30 Dec 2009 at 7:52

• Added labels: Type-Enhancement
• Removed labels: Type-Defect

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[deleted comment]

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From reading the docs, it seems there may already be a way to do call-backs. Is 
that
true? Maybe this enhancement request can be satisfied simply with a good "how 
to".

Original comment by davestec...@gmail.com on 13 Jan 2010 at 2:00

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Can you point me to that doc?

Thanks!

Original comment by stane...@gmail.com on 30 Jan 2010 at 8:47

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What is "Trigger Callback/Callthru"?
http://code.google.com/p/sipdroid/wiki/FAQ#What_is_%22Trigger_Callback/Callthru%
22?

What is "Trigger Callback/Callthru"?

Suppose you are outside your wireless LAN, or got a mobile Internet connection, 
but
not good enough for a SIP call. Normally the dialer would fall back to Phone in 
this
case.

    * Enabling "trigger callback" will instead ask the PBX to initiate a callback to
your mobile number, and connect the call to the dialed contact.
          o This makes sense if you like the PBX features (like calling a SIP URI,
simultaneous outbound, etc.), or if it's cheaper than a call from your mobile. 
I was
using the function while roaming with a local SIM card. Some plans also allow 
you to
get unlimited calls from a certain number. That number could be assigned to 
your PBX. 

    * Enabling "trigger callthru" will call a PBX's trunk/DID (or any other calling
card platform), dial PIN & destination number as DTMF tones, and connect you.
          o This is nice if you have unlimited minutes to a certain number or
nationwide, and want to use them to dial out or dial internationally. 

Exclude pattern and search & replace get applied in the same way as for SIP 
calls. 

Original comment by davestec...@gmail.com on 30 Jan 2010 at 10:50

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It will callback to your PSTN not Sipdroid

Original comment by sa4...@gmail.com on 14 Apr 2010 at 5:45

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Sure this may be less relevant now that * supports gtalk calls, but have a look 
at:

http://www.appbrain.com/app/google-voice-callback-free/com.xinlu.gvdial

Original comment by ezd...@gmail.com on 7 Dec 2010 at 4:42