Specifications

AT&T IP Flexible Reach
Quintum Configuration Guide
Page 3 of 47
1 Introduction
This Guide describes the steps for configuring Quintum Tenor AS or Tenor AX to work
with AT&T’s Flexible Reach Service. The Quintum Tenor AS/AX Multipath Gateway
Switch provides Analog telephone access with VoIP capability and multipath switching
for redundancy. Tenor Software release P104.12.02 was tested with the AT&T IP
Flexible Reach Service.
The Tenor AS/AX is a multipath switch capable of supporting Analog telephones. The
Tenor AS/AX uses SIP signaling to complete telephone calls over the AT&T IP network
using the Flexible Reach service. Under normal conditions, calls from Analog telephones
are converted into VoIP packets by the Tenor AS/AX and sent through the AT&T IP
network. The Tenor AS/AX can also use a PSTN connection to bypass the data network
(AT&T and Customer) if there is an outage.
References in this Service Guide to “Tenor” refer to either or both of the Tenor AS and
Tenor AX.
2 Special Notes
Emergency 911/E911 Services Limitations
While AT&T IP Flexible Reach services support E911/911 calling capabilities in certain
circumstances, there are significant limitations on how these capabilities are delivered.
Please review the AT&T IP Flexible Reach Service Guide in detail to understand these
limitations and restrictions.
Tenor Transfer Feature Must be Turned Off
The Tenor IP transfer feature must be turned off. Quintum and AT&T do not currently
have a compatible mechanism for handling IP transfers.
Session Description Protocol in Session Progress and Ringing Messages
Must be Turned Off
Session description protocol in the session progress and ringing messages must be turned
off in the Tenor.