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Voip component on delphi (SIP) (maybe VC)

Voip Component

We require to create a component for Delphi2007/ 7 that can stablish a Voip connection ( most of this usually comes on a softphone code), this component must work in an asynchronous mode so that methods are issued and the component answers if successfully/or not successfully executed, then all feedback comes through events.

This code will handle many "calls" at the same time so it MUST be designed accordingly, will be tested with 60 simultaneous calls.

We can provide the programmer with one or more Sip accounts for testing, if required.

We need all rights of the code in order to modify, copy, sell, etc.

Description of the component.

Methods:

Register/Unregister::

Registers with a voip PBX,

Call:

(Sends an Invite)

Request to Establish a call with another SIP phone. or requests this to the sip server. Using codecs G711 and GSM (if possible G729)

SendDTMF

Sends DTMF via RFC2833 or inband

Hold/Unhold

Sends Hold/unhold command

AnswerCall

Accepts and invite, and establishes a call.

RejectCall

Rejects and invite

Transfer

requests to refer the call to another sip address.

PlayWavFile

Plays a wav file to a remote user

StopWavfile

Stop the file being played

EVENTS

InviteIncoming

A call is coming in, someone invites us via SIP

InviteAnswered

An invite made by me has been accepted

Inviteringing

My outgoing call is ringing the remote party

DTMFReceived

a DTMF has been received

RegisterSuccess

Server accepted our registration

RemoteHold/unhold

Server accepted our hold/unhold command

ReceivesSound

We are detecting a stream of sound coming through the line.

PROPERTIES

ListOfcalls

List of all currently open calls, each call must be an object wich handles/has all calls details.

IF this exact behavior can be accomplished to be managed on Delphi BUT the component itself was made on C , providing that the code is available and our property and of course you help us to setup a design environment to compile and modify it, THEN, we could accept it (only wont compete against someone offering a delphi code under the same conditions).

We expect code to be very well commented, and expect a brief explanation of design architecture of the software , in order to save time to understand the code.

If you have or know how to make the Voip part but don't know how to make the component part, let us know, it could be fine with us to do a partial project with just the Voip part.

Offer must match the level of features requested, if you can only do a part of this, that would be fine only please bid accordingly and we will consider your offer.

If we get a very good economical offer and the final product works well for us, there are other modules part of the same project that could be awarded to the same bidder, so my advise is to be competitive in price/job.

50% Payment will be done against a compiled product after being tested on a multiple lines environment

25% Payment will be done against code delivery

25% Payment will be done against documentation

Færdigheder: C programmering, Delphi, Windows Skrivebord

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Om arbejdsgiveren:
( 6 bedømmelser ) Doral, Costa Rica

Projekt-ID: #285980

Tildelt til:

vladplav

Hi, I sell my own SIP delphi component that supports all functionality you need. It already used in many custom VOIP applications like softphones and IVR. Thanks, Vladimir

$800 USD in 2 dage
(0 bedømmelser)
0.0

9 freelancere byder i gennemsnit $1020 for dette job

indradj

Hi, I already have SIP component written with delphi 7. I can modify this component to meet your requirements (functions,parameters,event handler,etc). I can do this project quickly and accurately. Give me the project Mere

$1280 USD in 15 dage
(8 bedømmelser)
4.7
techgurgaon

Hello, I have worked on SIP implementation. I have been working on mobile application and speech recognition technology for the last two years. I can deliver this project as per your expectations. We can further di Mere

$1350 USD in 20 dage
(0 bedømmelser)
0.0
Cadr

Hello. We already have an Delphi component wich include this abilities: Answer an incoming phone calls Make PC to phone calls via VoIP providers Play voice messages from .WAV files Play the text (u Mere

$1000 USD in 20 dage
(0 bedømmelser)
0.0
legendaryjack

i have experience with voip, i have my own component, and i can modify.

$1000 USD in 2 dage
(0 bedømmelser)
0.0
metalfreelancer2

Voip guru here

$750 USD in 9 dage
(0 bedømmelser)
0.0
NewCadr

I'm cadr and i send PM.

$1000 USD på 1 dag
(0 bedømmelser)
0.0
Synergiess

Hi, We can deliver within promised time frame, please check PMB for more details. Thanks, Synergiess.

$1000 USD in 18 dage
(0 bedømmelser)
0.0
lianbo

Hi, Within I developed the project named "HD Video Conference For The Next Generation Internet", I have written up "SIP for HD Video Conference" and programmed our own SIP Server and agent. I can make you SIP compon Mere

$1000 USD in 15 dage
(0 bedømmelser)
0.0