SIP is open, but the best codecs used for audio and compatibility are
not they are well guarded and costly in licensing. Skype uses the iLBC
for audio.
Most of these are patented.
# G.711 uLaw Audio Codec
# G.712 aLaw Audio Codec
# G.726 ADPCM Audio Codec*
# G.729 CS-ACELP Audio Codec*
# G.729 (b) Silence Detection*
# GSM RPE-LTP Audio Codec*
Tom Benson wrote:
SIP is an open protocol unless I am mistaken.
I assume you are talking about audio & video streaming codecs???
If I'm right then iSoftiPhone uses quicktime to do this.... no license
required...
- Tom
On 14/02/2007, at 2:22 PM, Giovanni wrote:
Licensing costs of codecs would be abstronomical.
Cost of implementation will also be an issue.
Be ready to commit to this project for months if your doing this from
scratch
-----Original Message-----
From: "Tom Benson" <[EMAIL PROTECTED]>
To: "REALbasic NUG" <[email protected]>
Sent: 2/13/2007 6:02 PM
Subject: SIP VoIP protocol
Before I forge ahead, has anyone else had a stab at encapsulating the
SIP VoIP protocol for use in RB???
How much work is it going to be to render the data stream into a
sound file, and capture the mic and send data back???
Am I wasting my time here?? A customer wants me to include SIP
support if possible, and I am to quote him. I've suggested simply
integrating the Skype API (which I've already done) but he wants a
totally internal solution. If it's impossible I'll just make the cost
of doing it impossible...
- T
_______________________________________________
Unsubscribe or switch delivery mode:
<http://www.realsoftware.com/support/listmanager/>
Search the archives:
<http://support.realsoftware.com/listarchives/lists.html>
_______________________________________________
Unsubscribe or switch delivery mode:
<http://www.realsoftware.com/support/listmanager/>
Search the archives:
<http://support.realsoftware.com/listarchives/lists.html>
_______________________________________________
Unsubscribe or switch delivery mode:
<http://www.realsoftware.com/support/listmanager/>
Search the archives:
<http://support.realsoftware.com/listarchives/lists.html>
_______________________________________________
Unsubscribe or switch delivery mode:
<http://www.realsoftware.com/support/listmanager/>
Search the archives:
<http://support.realsoftware.com/listarchives/lists.html>
