The 3CX software can connect to the PSTN using either a third-party Sip gateway or Sip service provider
Review: 3CX Phone System Free Edition IP telephony
Build your own small-business PBX with this easy-to-deploy Windows software
Personal Computer World, 19 Mar 2008
Further reading
Cisco climbs telephony chart
Networking giant’s gain is Alcatel-Lucent’s loss, as two vendors trade positions in enterprise telephony standings 04 Mar 2008
Cisco climbs telephony chart
Networking giant’s gain is Alcatel-Lucent’s loss, as two vendors trade positions in enterprise telephony standings 04 Mar 2008
Related blogs
Cisco climbs telephony chart
Networking giant’s gain is Alcatel-Lucent’s loss, as two vendors trade positions in enterprise telephony standings 04 Mar 2008
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