Nortel Networks 9150 - Manual (Page 213)

Remote Gateway 9150 Installation and Administration Guide 183
January 2005 Configuring the Remote Gateway 9150 unit
Trunk support Choose 56K if you know that your Remote Gateway 9150
unit is in a PSTN network that can only transport at 56
Kbps.
Choose 64K if you know that your Remote Gateway 9150
unit is in a PSTN network that can only transport at 64
Kbps.
Choose Dynamic if you know that your Remote Gateway
9150 unit is in a PSTN network that supports speeds that
vary from 64 Kbps to 56 Kbps. The Remote Gateway 9100
Series system dynamically adapts and downgrades a call to
56 Kbps if 64 Kbps is not available.
Note: You must configure the same BRI speed (such as
56K, 64K, or dynamic) on both the RLC and the Remote
Gateway 9150 unit.
The default is 64K.
Field Description