Survivable Remote Gateway Configuration Guide

Chapter 4 CS 1000 considerations 33
SRG50 Configuration Guide
Chapter 4
CS 1000 considerations
A Survivable Remote Gateway (SRG) extends CS 1000 features from the main office and provides
a business continuity solution to one or more remote SRG locations (branch offices).
The Main Office Configuration Guide for SRG50 (NN43001-307) provides information specific to
the configuration of an SRG50 on the CS 1000. This guide is included on the SRG50
documentation CD for your reference. Access to other CS 1000 documentation may be required if
personnel are not familiar with configuration of branch offices on the CS 1000.
The following activities are specific to SRG50 configuration when the main office call server is a
CS 1000:
• “CS 1000 and SRG terminology comparison” on page 33
• “Normal and local mode overview” on page 35
• “Virtual trunk capacity” on page 38
• “Vacant Number Routing (VNR)” on page 38
• “Bandwidth management” on page 38
• “Bandwidth management configuration: NBWM, ADBWM, and ACR” on page 40
• “Emergency Services Access (ESA) configuration” on page 42
• “CS 1000 information for the SRG” on page 44
• “IP telephones redirection” on page 47
• “Firmware upgrade” on page 51
CS 1000 and SRG terminology comparison
The table Comparison of CS 1000 and SRG terms and contexts on page 33 compares
configuration-related terms and contexts of the CS 1000 and the SRG.
Table 7 Comparison of CS 1000 and SRG terms and contexts (Sheet 1 of 2)
Term or Context CS 1000 SRG
Dialing plan on-net / off-net dialing Private / Public network dialing
Type of number CDP / UDP / GDP / TNDN CDP / UDP / no equivalent
Numbers TN (terminal number) MOTN (main office terminal number)
TN = MOTN. That is, the TN from the main office is entered on the SRG in the
MOTN field (see “IP telephones redirection” on page 47).
BUID (branch user ID)
The dialable number of an IP telephone
at the SRG when it is called from a
phone located at the main office or
another branch office.
The CS 1000 BUID is entered on the
SRG (see S1000 IP Terminal Details
panel on page 48) but there is no SRG
equivalent for BUID.