Call processing
98 Avaya Application Solutions IP Telephony Deployment Guide
Avaya’s modem, fax, and TTY over IP support is subject to the following limitations:
●
QOS is required, even on LAN.
●
Avoid MoIP where possible (especially over a WAN environment)
●
Use circuit-based resources on the same gateway
●
Use different classes of service and restrictions
●
Use centralized modem pooling for larger communities
●
Only one TDM-to-IP-to-TDM conversion is allowed
●
Send duplicate streams, where practical
Table 16
summarizes Avaya’s fax, modem, and TTY options.
Table 16: Fax, Modem, and TTYoIP options
Fax
relay
Default, Avaya-proprietary mode, interoperates with previous
releases
Pass-thru
Proprietary mode; uses more bandwidth, fewer DSP
resources
off
system ignores fax tones, call remains in administered codec
Modem
off
Default, system ignores modem tones, call remains in
administered codec
relay
Avaya-proprietary mode, most reliable modem-over-IP mode
pass-thru
similar to Fax pass-thru
TTY
US
Default, 45.45 Baudot, interoperates with previous releases
UK
50 Baudot
pass-thru
similar to Fax pass-thru
off
system ignores TTY tones, call remains in administered
codec
Summary of Contents for Application Solutions
Page 1: ...Avaya Application Solutions IP Telephony Deployment Guide 555 245 600 Issue 3 4 1 June 2005 ...
Page 20: ...About This Book 20 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 21: ...Issue 3 4 1 June 2005 21 Section 1 Avaya Application Solutions product guide ...
Page 22: ...22 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 106: ...Call processing 106 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 124: ...Avaya LAN switching products 124 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 139: ...Issue 3 4 1 June 2005 139 Section 2 Deploying IP Telephony ...
Page 140: ...140 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 186: ...Traffic engineering 186 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 204: ...Security 204 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 228: ...Avaya Integrated Management 228 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 274: ...Reliability and Recovery 274 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 275: ...Issue 3 4 1 June 2005 275 Section 3 Getting the IP network ready for telephony ...
Page 276: ...276 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 356: ...Network recovery 356 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 366: ...Network assessment offer 366 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 367: ...Issue 3 4 1 June 2005 367 Appendixes ...
Page 368: ...Appendixes 368 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 394: ...Access list 394 Avaya Application Solutions IP Telephony Deployment Guide ...
Page 414: ...DHCP TFTP 414 Avaya Application Solutions IP Telephony Deployment Guide ...