Reference Guide for the Model XM128 ISDN Digital Modem
AT Command Set Reference C-11
&Wn n=0-3 Writes current settings to user profile n in nonvolatile RAM. See also
S-register 35.6. For a description of Extended S-registers, refer to TableD-4
on pageD-5 in Appendix D, “Status Registers and Result Codes."
&Z? Display all the phone numbers stored in nonvolatile RAM.
&Zn=s n=0-39 Write phone number/s to NVRAM at location n (n=0-39); use AT*Dn or
ATS29=n to set the default dial pointer.
&ZIn=s
s=phone number n=0-7
MSN setting. Assign the phone number (including subaddress, if any) for
various B channel protocols. In answer mode, these numbers are compared
with the received called_party_number and called_party_subaddress
information. The call is accepted using the specific protocol if the assigned
number of this protocol matches with the called_party_number.
n=0 Assigns multiple subscriber number (MSNs) phone number for X.75.
n=1 Assigns MSNs phone number for V.110.
n=2 Assigns MSNs phone number for V.120.
n=3 Assigns MSNs phone number for PPP, MPPP.
n=4 Assigns MSNs for ISDN data, protocol auto-detection.
n=6 Assigns the phone number s for analog adapter,
PHONE 1.
n=7 Assigns the phone number s for the analog adapter, PHONE 2.
&ZI? Displays the phone number (including subaddress, if an y) for various B
channel protocols.
&ZO? Displays the &ZOn setting.
&ZOn=x Writes own phone number (including subaddress, if any). The number
specified is used as the calling party number while dialing. Valu e for n:
I = ISDN data
A = analog adapter, PHONE 1
B = analog adapter, PHONE 2
TableC-3. Extended AT& command set (continued )
Command Options Function and description