> VM is the best we have seen.
How many others have you seen? I can name just a few things:
– Inability to place a rate change in the future (so if your vendor changes rate at midnight, which us 6am your time – you have to get up at 6am and very quickly put the data into the system, or you will get billing mismatches)
– Inability to say “this account/PIN can only use service on that gateway according to this tariff” (the special number feature in VM is much less limited)
– Inability to import carrier rates in the original CSV/XLS file
– No built-in visual invoice template editor
Look at PortaBilling100, most of the VoiceMaster users were really impressed with billing features you get there.