Android apps to bridge voice from SIP to GSM

IN PROGRESS
Bids
18
Avg Bid (USD)
$2481
Project Budget (USD)
$1500 - $3000

Project Description:
Hi,
I have a project to develop Android apps to bridge voice from SIP to GSM, below the requirement and flow

Requirement
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

apps
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

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

Delivery

1. Deliver the source code and installation apps

Skills required:
Android, Mobile Phone
About the employer:
Verified
Public Clarification Board
Bids are hidden by the project creator. Log in as the employer to view bids or to bid on this project.
You will not be able to bid on this project if you are not qualified in one of the job categories. To see your qualifications click here.


$ 3090
in 30 days
Hire hireafreeelancer
$ 2060
in 25 days
$ 2688
in 15 days
$ 2575
in 35 days
$ 3090
in 45 days
$ 2575
in 25 days
Hire Trentsetters
$ 2500
in 24 days
$ 1785
in 17 days
$ 2472
in 30 days
$ 2475
in 15 days