SIP Shuffling

[cferrera]

I know of course that IPO 56xx sets are H323, but do the calls shuffle if calls are made from IP Phone to SIP Trunk so not to use VCM resources?

 

[tlpeter]

it does not matter if the ipphone uses a analog trunk or a digital trunk or a h323 trunk or a sip trunk
it will always use a vcm channel

so the answer is no


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[Drew2400]

Actually tlpeter, that may not be true. I've tested this (using Callcentric as my ISP). When calling from an IP phone, it did not use a VCM Channel at all). From a TDM set, it used 2 then 1 upon completion.

Drew

 

[PlatinumGuy]

TDM - IP will always use a vcm channel.

so, IP over alog, isdn etc will always use a vcm channel.

IP over SIP may not, the views here vary, certainly the theory is it shouldnt if using direct media path and also using a codec the SIp provider supports.

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