The provider's implementation will have a bigger affect than any differences within Asterisk, e.g. how they are load-balancing and whether in fact SIP is serviced by Asterisk at all. Compared like-for-like within Asterisk we find there is not a lot in it, with each having their own pros and cons. We support both and whilst we have more customers on SIP than IAX, currently favour IAX for new customers where they are undecided given lower support overhead and simplified load-balancing. I'd recommend you try both with the provider you're considering.
Simon
www.esms.com
On 8/31/06, BerkHolz, Steven <[EMAIL PROTECTED]
> wrote:
I have no NAT issues. My PBX is multihomed and the outside IP is locked down for all except IAX and SIP ports.With the current version of asterisk, which transport is better right now?I am looking at 6-10 simultaneous calls over a half T1.I am not asking about codecs here, I am asking about SIP vs. IAX if the provider does either. (we are looking at testing Teliax next)I have seen posts about jitter in IAX, so I am not sure if SIP might be better to use right now.Also, since IAX uses the same port for all of the calls, the call separation has to be done higher in the OSI stack. I do not know if this is better or worse or neither.
Thank You,
Steven BerkHolz
- MCSA - MCSE -
Manager of Information Systems
TESCO Group Companies
Fax. 248-836-5101
www.TESCOGroup.comBoard member of
www.glimasoutheast.org
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