Linksys RTP300 - Broadband Router With 2 Phone Ports, Administration Manual

Page: 45 / 201

Linksys ATA Administration Guide 45
Using a FAX Machine (SPA2102, SPA3102 or SPA8000)
Configuring Voice Services
• G.729a
• G.723
WRP400
• G.711u (configured by default)
• G.711a
• G.726-32
• G.729a
Using a FAX Machine (SPA2102, SPA3102 or SPA8000)
NOTE: T.38 Fax is only supported on the SPA2102, SPA3102, and the SPA8000. The SPA2102 and
SPA3102 support a single connection, while the SPA8000 supports one connection for each
pair of ports (1/2, 3/4, 5/6, and 7/8) for a maximum of four connections.
To optimize fax completion rates, complete the following steps:
1. Upgrade the Linksys ATA firmware to the latest version
2. Ensure that you have enough bandwidth for uplink and downlink.
• For G.711 fallback, it is recommend to have approximately 100Kbps.
• For T.38, allocate at least 50 kbps.
3. To optimize G.711 fallback fax completion rates, set the following on the Line tab of your
Linksys ATA device:
• Network Jitter Buffer : very high
• Jitter buffer adjustment : disable
• Call Waiting : no
• 3 Way Calling : no
• Echo Canceller : no
• Silence suppression : no
• Preferred Codec : G.711
• Use pref. codec only : yes