is-phone communicator logoStand-alone SIP softphone

The is-phone communicator is

  • a SIP softphone client for VoIP providers and suppliers  (not for retail)
  • ready to use with SIP based IP PBXs like 3Com, Asterisk, Avaya, Cisco, Nortel or Siemens
  • ready for upgrade to the integrated Outlook Edition without additional download
  • customizable with branded UI

Flexible licencing models and setups as well as customization and branding possibilities to fit individual carrier and supplier needs.


SIP Providers/Carriers

  • increase usage, loyalty & revenue
  • upselling potential with add-on for integration into Microsoft UC

IP PBX Hosters & Manufacturers

  • added-value offering for new & existing customers
  • certified or tested with carrier-grade IP PBX environment

USB Audio Device Manufacturers

  • bundles with branded softphone
  • customized according to supplier specifications