Technical Specification


Computer: PC, Processor Intel Pentium IV or better, 256MB RAM free or more, 50MB disk space free or more.

Operating System: Windows XP, Vista, 7, 8, 10. (with .NET 2.0 or 3.0 or 3.5 framework installed)

Protocol: UDP/TCP/TLS SIP (RFC 3261, 3263, 3264, 3581, 3891, 4028, 4488, 4916, 5806) SDP (RFC 4566, 4568) RTP (RFC 3550) SRTP (RFC 3711)

Codec: G.722, G.711, G.729.

DTMF: In-band, Out-band (RFC 2833)

User Presence & Messaging: XMPP (RFC 3920, 3921)

Phone Presence: SIP SUBSCRIBE/NOTIFY (RFC 3265, 4662) Dialog (RFC 4235) or Presence (RFC 3856) PIDF/XML (RFC 3863) RPIDF (RFC 4480)

Own Presence: SIP SUBSCRIBE/NOTIFY (RFC 3265) Dialog (RFC 4235) or SIP PUBLISH (RFC 3903) Presence (RFC 3856) PIDF/XML (RFC 3863) RPIDF (RFC 4480)

Phone Messaging: SIP MESSAGE (RFC 3428)

Voicemail: SIP SUBSCRIBE/NOTIFY (RFC 3265) Message-summary (RFC 3842)

Call Transfer: SIP REFER (RFC 3515)

USB Devices: Headset, Handset, Speakerphone, Light/Ringer. (click here for the list of compatible devices)

Outlook Support: 2000, 2002, 2003, 2007, 2010, 2013, 2016.

Languages: English, French, Spanish, German, Italian, Dutch, Danish, Portuguese, Polish, Turkish, Russian.

Validated with: Metaswitch, Broadsoft, Cisco, Cirpack, Communigate, Enswitch, PBXnSIP, 3CX, Asterisk, sipXecs, FreeSWITCH, OpenSIPS.