[Asterisk-Users] SIP or IAX

Sandeep A.S
Wed, 01 Jun 2005 23:48:21 -0000

For bridging  VOIP with  PSTN Lines
Which one is giving better performance  SIP or IAX ?
 I am looking at a result without NAT in picture ?
Can some body give details from experiance ?
Also with single SIP/IAX channel can I use more than one call at a time ?

Thanks
Sandeep