[pjsip] SIP Browser Embedded

logan logan04x at gmail.com
Fri Feb 29 10:16:29 EST 2008

Hello Thomas,

I have been trying to do something similar, but my observation has been that to put a SIP phone inside a browser is pretty difficult. The main reason being that for security reasons most environments (Python, Java applets, Jython, Silverlight) doesn't offer access to microphone. I believe we can use ActiveX controls for this purpose but not sure how to generate that from the PJSIP Python wrapper (any ideas on this are welcome)? However, I was thinking that we can perhaps use Flash to transmit audio from the client to the server and from there pass it to PJSIP. I haven't had the time to work on it offlate, but does anyone see any  caveats?


Best Regards,
Hitesh Sharma
  ----- Original Message ----- 
  From: Thomas Plotkowiak 
  To: pjsip list 
  Sent: Friday, February 29, 2008 6:14 AM
  Subject: [pjsip] SIP Browser Embedded

  I was wondering what alternatives there are out there if I want to offer SIP VoiP Telephony directly out of the browser, for Internet Explorer and Firefox, platform independent.
  Two main candidates for this approach would be Flash and Java Applets, both are widely supported. I also thought about ActiveX. 

  Possible Java candidates are:
  JAIN-SIP-Applet-Phone  - needs to install JMF, so useless, for nonexperienced users.
  SIP Communicator - is written in Java, but I dont see an Applet. 

  It seems though Java needs the JMF to work with audio and video, so this approach is pretty useless.

  Possible Flash candidates are:
  WengoVisio - but you are limited to use their service, yet it shows that is seems to be doable.
  TringMe - seems to work with any sip provider. yet lacks video support.
  Flashphone - also limited to use a certain provider.

  Possible ActiveX candidates:
  VaxVoip - Unlimited simultaneous call/voice sessions $12,000 ...
  PjSiP - This would open possibility to write SIP User Agents in Visual Basic (VB) or C# .NET. Once we had an experimental ActiveX component for pjsua-lib, but the development has been cancelled in favor of Python (which can generate ActiveX too!).

  Are there any details about the activex implementation of pjsip? Or maybe more candidates? 



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