Specifications

Chapter 10 – Network Service Commands
Multi-Tech Systems, Inc. CDMA C1 AT Commands Reference Guide 53
Band Preference +WBND
Description: The CMDA modem Band Preference governs the basic system acquisition behavior of the PRL
(Preferring Roaming List). It’s important to note that the PRL takes precedence over band
preference when guiding the phone to a band. The PRL must allow a particular band first, before
the band preference can take effect. In other words, a band preference change is simply a
request; the PRL decides whether or not to allow it. If the setting is accepted by the MS, the
value will be written to non-volatile RAM and persist after a power-cycle.
The behavior of Cellular A and cellular B has changed slightly from previous Multi-Tech
command guide definitions. Cellular A now means cellular A is preferred, and cellular B means
cellular B is preferred. As an example: If the device is set to cellular A, the modem will look for
service on the A side first. If service cannot be found, the modem will then check the B side for
service before reporting no service.
Note: The command may not be available in all software variations due to carrier
requirements.
Syntax: AT+WBND=<band>,<persist>
Command
Possible Responses
AT+WBND?
Note: Ask for current Band Preference
+WBND: 0
OK
Note: Any
AT+WBND=?
+WBND: (0-4),(0-1)
OK
Note: Any, PCS, Cell, Cell A, Cell B
AT+WBND=0
Note: Allow Any Band
OK
Values: <band>
0 Any
1 PCS
2 Cellular A or B
3 Cellular A
4 Cellular B
<persist>
0 Do not save to NV
1 Save to NV (default)
Service Indication +WSRV
Description: This response indicates the SID and NID of the service provider selected for the modem as
dictated by the PRL, AT+WBND, and AT+WRMP commands.
Response
Syntax: +WSRV: <sid>, <nid>
Possible Responses
+WSRV: 69, 101
Values: <sid> <nid>
0-65536 Values of the SID and NID.
Check AT+WUSLMSK settings if response is masked.