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Android apps to bridge voice from SIP to GSM
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IT & Programming > Mobile Applications

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The client has made the following changes to the job.


Job awarded.

Dec 17, 2012

Job Description

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  • Posted: Thu, Nov 29, 2012
  • Time Left: Closed
  • Location: Anywhere
  • Client prefers freelancers from:

    You are still able to submit a proposal for this job.

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    a different location.

    You're still able to submit a proposal for this job, regardless of your location.
  • Start: Immediately
  • Budget: $500 - $1,000
  • Fixed Price Job
  • Elance Escrow Protection
  • U.S. freelancers must have W9
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I have a project to develop Android apps to bridge voice from SIP to GSM, below the requirement and flow

1. Support all Android phone and all android version
2. SIP must support standard sip pbx or sip proxy. example Asterisk or VoipSwitch
3. Option to support SIP TLS
4. Support Wifi and 3G internet

1. Android using SIP can register to SIP PBX or SIP proxy using Wifi or 3G
2. SIP PBX/Proxy send call to android phone and android phone will send call to GSM

1. SIP PBX/Proxy ->(via internet Wifi or 3G) -> Android Phone -> GSM Network

1. Deliver the source code and installation apps

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