Voice Quality

• Real-Time Account Balance Display
• Real-time balance calculation and display while the call is on. The balance keeps reducing while the call is on.
• Time remaining display in real-time
• Last 20 Calls CDR history in real-time itself
• Connect to PSTN and mobile phones (using SIP gateways & soft-switches)
• Microphone & speaker device selector
• Speakerphone
• Microphone & Speaker Volume control
• Audio tuning wizard

• PC to Phone, Phone to PC & PC to PC Calling
• Authentication - HTTP Basic, Digest Authentication
• Basic Telephony - Do not disturb, Auto answer, Redial
• SIP UDP Support
• Codec negotiation as per defined sequence by Service provider.
• Free product version upgrades
• Skins
• Address book
• Call Timer
• Credit Balance Display
• Make installation packet
• Works with all kind of Internet connections

• Adaptive jitter buffer
• Packet loss concealment for voice
• Automatic Gain Control (AGC) for voice
• Voice Activity Detection (VAD)
• Acoustic Echo Cancellation (AEC) and support for speakerphone
• Codecs Supported: G.723, G.729, iLBC, G.711ulaw and G.711alaw
• VAD (Voice Activity Detection) to enable voice transmission.

Compatibility

Technical Capability Features

• MS Windows(2000/XP/2003/Vista)
• Work with Windows Audio.
• Audio call - Dial and receive phone audio calls
• Audio codecs - G.711 uLaw/aLaw, G.723.1,G.729, iLBC
• Supported SIP Methods - REGISTER ,INVITE,CANCEL, INFO,BYE, ACK,    REFER, SUBSCRIBE,OPTIONS, NOTIFY,MESSAGE, UPDATE
• RFC supported - RFC 3261, RFC 3665, RFC 2833, RFC 2327, RFC 3264, RFC 3550, RFC 3263, RFC 3891,RFC 3515, RFC 3420, RFC 3892, RFC 3265, RFC 3666, RFC 3489, RFC 3920, RFC 3921, RFC 3922, RFC 3923, RFC 4622, RFC 4854, RFC 4979, RFC 3842,

• NAT and firewall traversal using HTTP tunneling
• Microphone and speaker device selector
• UDP, TCP and TLS for SIP transport
• Proxy/WWW authentication
• Connect to PSTN and mobile phones (using SIP gateway/softswitch)
• Security offering signaling & media encryption via TLS streams