Develop and integrate Soft phone (SIP, VOIP ) for mutliple platforms

We are looking to develop a softphone like

Zoiper, ([url removed, login to view])


Zangi ([url removed, login to view])

some of the features are listed below. Please apply if you have understanding of the project.

Access to the native contact list;

- Favorites / Speed Dial;

- Call History / Contact management;

- Voicemail integration / notification (SIP MWI);

- Hold / Resume / Redial;

- In call contact picture;

- Configurable DTMF (SIP INFO / RFCs 2833/4733 / RTP Inband);

- Notification Center Support for missed calls, voicemail and registration status;

- Blocked Numbers List.

• Codecs:

- Included: [url removed, login to view] (uLaw & ALaw), iLBC;

- Purchasable: [url removed, login to view] (Wideband), iSAC (HD), [url removed, login to view] Annex-B;

- Support for UDP and TCP.

• Other:

- Call Waiting / 2nd Call / Call Toggle / Call Transfer / Conference;

- Switch between Multiple SIP accounts (one registration at a time);

- Secured SIP Transport (TLS);

- Secured Encrypted Media (SRTP) with SDES;

- Languages: English, French, German, Spanish, Portuguese, Arabic, Japanese, Chinese (Simplified), Russian, Turkish

Skills: HTML5, jQuery / Prototype, Mobile App Development

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About the Employer:
( 4 reviews ) Cippenham, United Kingdom

Project ID: #8977616

5 freelancers are bidding on average £717 for this job


Hi Thanks for your valuable time. :-) Just reply with 'Yes' and We will come up with a. Detail project plan with our comments/queries. b. Best-feasible-real COST & TIMELINE Latest Apps : [login to view URL] More

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