User guide
VTGO-PC 2.8 Advanced User Guide
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Introduction
VTGO-PC is a Microsoft Windows 98 SE, 2000 and XP compatible softphone application that
provides Cisco AVVID compliant IP telephony services. The application emulates the functionality
of Cisco 7900 series IP telephones and includes the following: an easy to use Graphical User
Interface (GUI) , optional voice assistance to aid visually impaired users, High quality-low latency
audio with support for Quality of Service (QOS), USB telephone device support, Multiple line key
support (from 1 to 34 lines), Speed Dial keys, Contextual feature activation softkeys, Directory
services with support for Outlook Contacts, LDAP, Active Directory, Cisco IP Telephony Services
support, detailed call logging with dial-back, and integrated VPN support to facilitate remote
access and telecommuting.
Version 2.8:
• Supports Cisco IPSEC VPN 3.X, 4.0 and 5000 Clients and Microsoft's PPTP VPN client
• Supports selection of audio device from a list for Call audio, notifications and call progress
tones
o Selection of a sound device pairs the microphone and speaker
o Use of multiple sound devices pairs the microphone and speaker
• Supports USB Telephone Devices:
o PDT Cyberphone and Cyberphone-K, V-550, V-Connect, Claritel i-750, Actiontec
Internet Phone Wizard and Eutectics IPP200 USB Handset
• Supports UDP/RTP/Audio port selection and restriction for source and destination
• Supports GSM 610, G.711 and G.729a codecs
• Supports LDAP directory services
• Supports USB Telephone Device Failure Detection and Recovery mechanisms
• Supports using the PDT V-550 to navigate through Directory Services and place calls
• Supports discovery of Call Manager via DHCP option 150 and TFTP boot procedures
• Supports IOS Telephony Service
• Supports Survivable Remote Site Telephony
• Supports Advanced Power Management
o Restores display on phone event
o Prevents suspend when idle
• Supports hot-switching from one audio device to another
• Supports Auto-Answer
• Supports dial plan for user configuration
• Supports call logs
• Supports CallManager failover and fail back
• Contextual Volume Controls for Call Audio, Notification, and Headset audio devices.
• Improved jitter buffer and packet loss concealment
• Many improvements in call processing and stability