Orpheum offers its iVoice (SIP trunking) and hPBX (Hosted/Virtual PBX) services exclusively to businesses in the USA and Canada. Both services start at $25 per month.
PanTerra''''''''s WorldSmart delivers cloud-based unified communications to businesses around the world, integrating business VoIP, web and desktop collaboration, digital fax, instant messaging, presence, mixed medium group conferencing and call center se
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