Table 3-4 Voice Service Specifications - Alcatel-Lucent 7330 Product Information Manual

3.4 POTS interface specifications
Table
Service features
Voice quality
DC supervisory range
G.168 echo
cancellation
CODEC
Analog line
impedance
Ringing voltage
Ringing capacity
Off-hook dc current
Maximum expected
DTMF signal level
Receive (D/A) loss
Transmit (A/D) loss
Loop start signaling
Loop length
Notes
(1) These items are determined by the country-specific VoIP configuration XML file. The values
specified are for ANSI deployments.
(2) While the maximum ringing capacity for all ONTs is five REN per POTS line, some ONTs can support
more than one POTS line at a time. For MDUs and business ONTs, the maximum ringing capacity is
three POTS lines with a five REN load ringing simultaneously. For indoor ONTs, the maximum
ringing capacity is two POTS lines with a five REN load ringing simultaneously.
SIP Overview
Voice-over-IP (VoIP) implementations enable users to carry voice traffic over an IP
network. A VoIP system consists of a number of different components: softswitch,
gatekeeper, user agent, signaling gateway and a call manager etc., depending on the
type of signaling-control protocol that is being used. There are a variety of signaling
protocols defined by the standard bodies Internet Engineering Task Force (IETF) and
International Telecommunication Union (ITU), which specify how the user can
setup signaling and bearer paths between the end devices. SIP signaling is based on
a collection of IETF standards.
Alcatel-Lucent 7330/7302 ISAM FTTN R04.02.42a
3FE 54199 AAAA TCZZA
3 — ONT and MDU general and interface technical specifications
3-4 lists specifications for the ONT voice service.

Table 3-4 Voice service specifications

Specifications for the ONT
Toll quality voice with a mean opinion score (MOS) of 4 or better
Total dc supervisory range of 750 Ω, allowing for 1000 ft (305 m) of 26
AWG CAT3 cable, CPE equipment, and a margin allocation
16 ms tail for near-end echo
(1) G.711 (PCM 64 kb/s), G.729, and A-law and U-law encoding and decoding
600 Ω
(1)
(1) minimum of 40 Vrms
5 REN (US) per POTS line
(1)
25 mA
0.0 dBm
(1) 4 dB
(1) 2 dB
—
Up to 984 ft (300 m)
Edition 01 ONT Product Information Guide
(2)
March 2011 3-7