Extend VoIP SIP client framework.

Hi we are looking for a dev team or rockstar telco developer who can extend an opensource framework for building VoIP SIP apps. You will download the aforementioned framework, extend it with a new provided audio codec (also opensource).

Once you include the codec in the framework you have to prove that it is working properly including it in 4 provided SIP clients.

The framework is in ANSI C and the SIP User Agents (clients) in ObjectiveC, Android C++ (NDK) and C#.

We will provide example of implementation of that codec in another OpenSource C-based SIP Client.

Just serious bidders please. Possibility of long-term partnership.

***CAN PAY UP TO 550 USD maximum.***

Skills: Android, C Programming, Objective C, Telecommunications Engineering, VoIP

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About the Employer:
( 3 reviews ) Valencia, Spain

Project ID: #1289147

8 freelancers are bidding on average $506 for this job


What are we talking about? Sofia SIP library from Nokia? Which Codec? can you please clarify? Thank you in advance.

$550 USD in 21 days
(9 Reviews)

Hi, please check PMB. Thanks.

$550 USD in 30 days
(16 Reviews)

I have developed Voip gateway for telecom company. Details in PMB.

$500 USD in 7 days
(4 Reviews)

Thanks for your Opportunity please check PM

$500 USD in 7 days
(0 Reviews)

I can complete this job, because: 1. I am currently an senior Asterisk source code developer in a well-known IP-PBX company in US. 2. I led the development of an IP Phone product in my previous company. 3. I am ve More

$550 USD in 21 days
(0 Reviews)

Plz Check PMB

$400 USD in 5 days
(0 Reviews)

we have experience of more than 5+ [url removed, login to view] are expert on VoIP client development and practical experiences on VoIP client solution in block [url removed, login to view] have PC2phone(on QT), Symbian, android dialer with g729 codec.

$500 USD in 5 days
(0 Reviews)

Hi, We are group of enthusiastic engineers who has more than SEVEN years of professional experience in IP Multimedia subsystems and Voice over IP domains. We already made a similar kind of application using SER open More

$500 USD in 21 days
(0 Reviews)