[Asterisk-Users] why even use SIP

Andrew Kohlsmith akohlsmith-asterisk at benshaw.com
Mon Mar 21 11:15:22 MST 2005


On March 21, 2005 01:07 pm, Kevin P. Fleming wrote:
> Well, let's see.. 99.99% of the available VOIP hardware only support
> SIP, MGCP and H.323, but not IAX2. Is that a good reason?

No.  95% of the marketplaces uses Windows.  Drive the marketplace to use 
better protocols.

> IAX2 calls between servers carry the signaling and media in the same
> connection, which is good for NAT issues, but bad for CDR and traffic
> control issues. SIP handles them separately, so you can keep complete
> CDR without forcing the media to follow the same path. Is that a good
> reason?

Yes, but the dynamic port allocation and ABSOLUTELY INSANE WORDINESS and 
WASTAGE of the SIP control protocol is reason enough for me to never want to 
support it.  While perhaps not worth much on my own, I am voting with my 
wallet and my feet.  I will not support SIP, nor will I purchase products or 
services which require it.

-A.



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