WHAT ARE THE REQUIREMENTS THAT CAN HELP ENSURE CALL QUALITY?
• High-speed connections on both ends of the call: Good quality VoIP is not possible over a dial-up modem connection. Faster broadband connections can support several simultaneous VoIP calls. • A reserved link between locations (ie. a Virtual Private Network [VPN] or private Wide Area Network [WAN]): This can eliminate or reduce delay associated with routing packets over the Internet. • The right compression algorithm (CODEC) for your location: TalkSwitch supports 3 CODECs. The default CODEC is G.729, which uses approximately 20Kbps bandwidth upstream (your voice going out) and 20Kbps bandwidth downstream (your caller’s voice coming in) for each call. G.729 provides very good call quality while minimizing bandwidth usage. The G.726 (32Kbps) CODEC provides better voice quality. However, it requires more bandwidth per call. A G.726 call typically requires 50Kbps bandwidth upstream and 50Kbps bandwidth downstream. The G.711 CODEC provides the best voice quality. The trade off is the bandw
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- WHAT ARE THE REQUIREMENTS THAT CAN HELP ENSURE CALL QUALITY?
