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Supports Windows 2000 / XP-Home / XP-Pro / Windows 2003 / VISTA 32 & 64 Bit (all Versions) 

PC Phone is a SIP User Agent, a software application that transforms your PC or Laptop into a telephone, giving you the advantage of using the same system to make and receive voice and video calls as you use to check your email and do other computing tasks

• Attractive for Telephony Service Providers to co-brand due to affordable unlimited license packages
• Fully-fledged Audio/Video SIP Softphone; RFC 3261, RFC3550 compliant
• Dial pad for dialling and for DTMF tone generation
• Intuitive use through tab-sheets with menus in the display area of the phone
• Video on/off, AA (auto answer) and DND (do not disturb) buttons
• 6 speed dial buttons
• Phonebook, log of inbound calls as well as log of successful outbound calls
• Call timer and Caller ID (SIP ID)
• Call transfer and automatic forwarding of calls
• Microphone & Speaker Levels and level meters
• Separate session window with video window and numerous controls (volume controls, transfer button, etc.)
• Supported audio codecs: G.711, G.722.1, G.723, GSM, DVI4, SIREN
• Redundant Audio Coding acc. RFC 2198
• Additional audio features: AEC, AGC, Dynamic Jitter Buffer (up to 500ms)
• Supported video codecs: H.263 and H.261 (QCIF and CIF, 6 to 125kBps)
• Exceptional characteristics at low bandwidth through Automatic Bandwidth Estimation
• Automatic mapping of IP addresses and ports of UPnP-enabled NATs
• 1 or more SIP accounts (depending on specific build) with 1 active account at a time
• Comprehensive network settings dialog, SIP server settings dialog and phone settings dialog
• Integrated Tuning Wizard
• Ringtones and background image can be customized (for audio: WAV files, for images: BMP)
• Easy to install