ADTRAN DSU IV ESP, User Manual

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Chapter 9. Configuring Dial Options
61204011L1-1 DSU IV ESP User Manual 9-3
Phone Numbers
The DSU IV ESP stores up to 10 numbers of 36 digits each. Edit a
phone number by reentering the entire number. This process
overwrites the previously stored number.
Table 9-1 shows the AT Commands available for the P
HONE
N
UMBER
option.
Table 9-1. AT Commands for Storing Phone Numbers
ISDN Dial Backup
Setting the Service Profile Identifier (SPID)
For ISDN dial backup, the service profile identifier (SPID) is stored
in Stored Number 9. The SPID is a sequence of digits identifying
ISDN terminal equipment to the ISDN switch when more than one
ISDN set has been attached to the same central office line. The SPID
is assigned by the telco when the ISDN line is installed and
normally resembles the phone number.
Only the AT&T 5ESS switch is capable of recognizing a point-to-
point configuration, eliminating the need for a SPID. All other
switch types require a SPID.
Setting the Local Directory (LDN) Number
For ISDN dial backup, the LDN is stored in Stored Number 10.
See Table 9-1, above.
AT Command Description
&Zn= Store Phone Number
&Z9 Enter SPID Number for ISDN dial backup
&Z10= Edit LDN for ISDN dial backup