[Asterisk-Users] why even use SIP

[Kevin P. Fleming]

Sys Admin wrote:

> After reading this and other google results for "IAX vs SIP" is there
> any reason why i should use SIP anywhere !!

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?

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?