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Having read the specs, you'll now be in a good position to understand why various SIP products have difficulty playing nice with each other, and, an idea of how to start working on your own app.Įven with a decent toolkit, you will spend the better part of a month getting SIP to reliably do what you want it to in communicating signalling information, and writing the required infrastructure to respond to SIP signals. Drill each other on them, it's a lot of information, and it's relatively complex in terms of how they all inter-relate to each other.īreak out the protocol analysers (Wireshark, etc) and see what the apps you have are doing on the wire. For week 2, consider which extension specifications you'll need (presence indications, preconditions, conferencing, GRUU, etc) and spend the time to read those as well.
Possible feedback loop sound siphon full#
That should occupy about a week if you're doing it right, and full time.
I would recommend you start looking up RFCs, and simply devote a good amount of time to reading the signalling specs, and any extensions you will need for your application, including at a minimum, the base specification, the SDP specification, and the ICE protocol specification. SIP is a complex specification, with many extensions and peculiarities, especially relating to firewalls, forwarding, branching and joining. Our dev cycle lasted nearly a year, but I was both the lead, and only programmer on the project, and that time includes all the work done on the UI, requirements coordination, planning, documentation, etc. The following timeline is based on my own experience, though I've shortened timelines somewhat due to there being two of you. You will enjoy a great deal of satisfaction at having gotten such a beast to work, and I wish you the best of luck in shaping it to your will! However, be prepared: SIP is a frustrating beast to work with. Far from it, SIP is a fun protocol to work with (eventually) and it's very rewarding to see it all come together. This may sound like I'm trying to disuade you from persuing this endevor. Or any kind of a tutorial available? (Documentation of LinPhone is not upto the mark).
Is there any other good open source library available to use easily to make an app like this? How many days will and Expert & Medium Level Developer will take to make app like this without any prior knowledge of any SIP app? (Any Rough idea according to you.) I want to use G711(Both A and u) codec in the application and I can't find any header file's for that, please can any one suggest me how should I use G711 codec with the LinPhone Library in my Application?Īlso can any one tell me that how many days it takes to cover up the SIP application without video functionality in it? (Audio Calls with GSM,Speex,G711 Codec's - only) (What else should I copy in my project to get going - i have copied the apple-darwin include & lib folder in my application) Then copied the files from LinPhone project into my project and still working on it. Then I tried with LinPhone and it worked fine. Now I tried using PJSIP & SIPHON but somehow failed with lots of errors.
Possible feedback loop sound siphon password#
Can any one help me out to clear my doubts i am trying to implement an SIP application, I already have sip server setup and i have the username and password of my sip account.
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