Convert android device into SIP > GSM Gateway

$500-1500 USD

Closed

Posted

over 8 years ago

$500-1500 USD

Paid on delivery

I need to turn an Android cellphone as SIP to GSM Bridge of Gateway. Traffic from SIP must be translated to GSM channel. You are free to choose how to implement this feature. All that is required is that in the end the Android phone will be acting as a SIP to GSM channel/trunk/GW and other SIP devices can connect and make phone calls using this. From my side i can provide you with Linux firmware and documentation for few native SIP > GSM GWs. This is the first thing which is need to be developed. Depends on result of a job contract can be signed to future cooperation.

Android

Linux

Mobile App Development

VoIP

Project ID: 8936121

About the project

11 proposals

Remote project

Active 8 yrs ago

Looking to make some money?

Email address

Benefits of bidding on Freelancer

Set your budget and timeframe

Get paid for your work

Outline your proposal

It's free to sign up and bid on jobs

11 freelancers are bidding on average $1,545 USD for this job

@ping198041

How are you? I really would like to work for you. I'm Soft developer and expert. I have rich development experience and have developed many apps. If you choose me, I will do my best for you. I already read your proposal and understood your project clearly. I will work for you honestly and will try to complete on time exactly. I wait your positive response and you may believe me. Thank you very much.

$1,580 USD in 20 days

5.0

(68 reviews)

7.1

@daguang

HI. PELASE CONTACT ME, BEFORE AWARD SOMEONE ELSE! I have 100% confident to finish your project successfully. I am senior iOS&Android&Web&Backend developer and have 7+ years experience. I am providing high quality results and my code is excellent with MVC. I can complete your project successfully within the shortest duration. I wish your reply. Regards.

$1,052 USD in 20 days

4.6

(16 reviews)

6.7

@prashushinde9

I want to discuss this project with you further, let me know the best suitable time for you to schedule the meeting.

$1,546 USD in 40 days

5.0

(9 reviews)

4.0

@tonyjacobk

can you explain your requirement a bit more ? Is it like - you have Voip network and you want to make GSM calls from it using this Mobile phone ? What kind of PBX you have?. I have done a project like this with Bluetooth pairing of PBX and cell phone. After this pairing any phone in VOIP network can call outside using the Mobile phone

$1,111 USD in 20 days