Nortel Networks 9150 - Manual (Page 287)

Remote Gateway 9150 Installation and Administration Guide 257
January 2005 Configuring the Remote Gateway 9150 unit
ATA- and MCA-equipped stations and bandwidth requirements
Each station equipped with an MCA requires a full 64 Kbps of bandwidth to the
host PBX.
For stations equipped with ATA devices, the bandwidth used by calls processed
on those stations is as follows:
The following table identifies the number of MCAs or ATAs that can be
connected to the Remote Gateway 9150 unit:
Notes:
!
You can have eight MCAs or ATAs installed if an analog telephone or fax
machine is not installed.
!
You can have up to 32 digital telephone sets, one fax machine, and seven
ATA/MCAs installed. However, only 32 simultaneous calls can be made.
IF using THEN
G.729A compression and the call
is a voice call, the voice call is sent as 8 Kbps to the
host PBX.
G.729A/Fax compression and the
call is a fax call, the fax call is sent as 9600 bps.
G.711 compression
(uncompressed) and the call is a
fax call the fax call is sent as 64 Kbps.
the call is a local call, the voice call is not compressed. It is
sent as 64 Kbps of data across the
ISDN BRI B-channel.
IF the Remote Gateway 9150 unit
is connected to THEN you can connect
a 1-slot RLC
(supporting 16 users), four MCAs or ATAs to the Remote
Gateway 9150 unit.
a 2-slot RLC
(supporting 32 users), seven MCAs or ATAs to the Remote
Gateway 9150 unit.