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Reply To: VoIP calling card


Expensive ^^

ususally IVR system is Diallogic base indestrial computer
it is 4 port or 8 port T1/E1,

if you use IVR the system is

customer–telco PBX–IVR–GW–GK—GW–Telco PBX—customer
so IVR reduce load of GW,
but I think it’s not good

Lucent MAX6000 or TNT Gateway, it have IVR on gateway , ciscoAS53xx aslo
it’s up to you, IVR system is little bit stable