Specifications

Circuit packs, channel service units, and power supplies
270 Hardware Description and Reference for Avaya Communication Manager
Note:
Note: If a pair of TN2602AP circuit packs previously used for load balancing are
re-administered to be used for bearer duplication, only the voice channels of
whichever circuit pack is active can be used. For example, If you have two
TN2602 AP circuit packs in a load balancing configuration, each with 80 voice
channels, and you re-administer the circuit packs to be in bearer duplication
mode, you will have 80 (rather than 160) channels available. If you have two
TN2602 AP circuit packs in a load balancing configuration, each with 320 voice
channels, and you re-administer the circuit packs to be in bearer duplication
mode, you will have 320 (rather than 484) channels available.
Features
The IP Media Resource 320 supports hairpin connections and the shuffling of calls between
TDM connections and IP-to-IP direct connections. The IP Media Resource 320 can also
perform the following functions:
● Echo cancellation
● Silence suppression
● Adaptive jitter buffer (320 ms)
● Dual-tone multifrequency (DTMF) detection
● AEA Version 2 and AES media encryption
● Conferencing
● QOS tagging mechanisms in layer 2 and 3 switching (Diff Serv Code Point [DSCP] and
802.1pQ layer 2 QoS)
● RSVP protocol
The TN2602AP IP Media Resource 320 circuit pack supports the following codecs for voice,
conversion between codecs, and fax detection:
● G.711, A-law or Mu-law, 64 kbps
● G.726A-32 kbps
● G.729 A/AB, 8 kbps audio
The TN2602AP also supports transport of the following devices:
● Fax, Teletypewriter device (TTY), and modem calls using pass-through mode
● Fax, V.32 modem, and TTY calls using proprietary relay mode
Note:
Note: V.32 modem relay is needed primarily for secure SCIP telephones (formerly
known as Future Narrowband Digital Terminal (FNBDT) telephones) and STE
BRI telephones.