Hi - quick question, with a sip phone connection is the idle (not on a call) data usage negligible? I know skype can use a fair bit even when not on a call due to the p2p setup, but I guess SIP only needs a few bytes now and then to confirm connection?
Looking at getting a wireless connection + VFX or 2talk, but don't want the sip connection chewing through data 24 hours a day!
The sip data usage is very very small when not in use, basically a single packet every 60 secs or so to keep the connection alive, also if you have a WxC internet connection then your SIP traffic does not come off your total we're good like that
Thanks Maverick - yip, I'm already with wxc for DSL and knew you didn't charge for sip data. The Xtencity product looks good, but not sure I could cope going back to 256/128k 3GB I might just have to be patient and wait (14 moths according to Juha!) for naked DSL.
Hi, nDSL probably will still not fix your SIP issue. The issue is still going to be there because it is likely that most exchange connections will be FTTN to TCNZ ISAM's. Basically this mean most telcos will probably still buy their backhaul from the street side DSLAM from TCNZ back to an aggregating exchange. What is probably going to better for you is UBA service with COS/QOS so you can ensure that SIP session stays active. However as pointed out minor packet overhead now and in the future no no or little cost. It is always going to be a comprimise between dollars and service.
What is probably going to better for you is UBA service with COS/QOS so you can ensure that SIP session stays active. However as pointed out minor packet overhead now and in the future no no or little cost. It is always going to be a comprimise between dollars and service.
Hi GrumpyDwarf
Actually this is slightly irrelevant, UBA and Enhanced UBA is still being worked out at present and relate to the bandwidth that is going to be allocated for Real Time Apps(CIR) committed information rate , ie VOIP. and this is not really required t o keep the connection active,
what Matt was asking was when SIP calls are not up what SIP traffic is passed and would it have an effect of peoples data caps which is a single packet every 55 secs approx that keeps pinholes / firewalls open to allows SIP messaging to keep working. This "Keep alive" traffic is so very very very minimal that it can almost be considered non existent.
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