User guide

Chapter 10 – Network Service Commands
Multi-Tech Systems, Inc. CDMA C1 AT Commands Reference Guide (PN S000478C) 51
Default Cell Band +WDCB
Description: This command allows the user to display or override the Auto-A or Auto-B selection made by a
prior AT+WRMP command or an OTASP session. The Auto-A/Auto-B selection determines which
cell bands, if any, are scanned when the channels listed in the PRL are not found. If the Auto-
A/Auto-B feature is enabled, the default cell band is set based on the value of the home SID. The
+WDCB command can be used to select the cell band, or none, as the default, or fallback.
This setting is persistent across power-downs.
Note: Command may not be available in all software variations due to carrier requirements.
Syntax: Command syntax: AT+WDCB=<value>
Command Possible Responses
AT+WDCB=?
Note: Display valid parameter range.
+WDCB: (0-2)
OK
AT+WDCB?
Note: Display current setting.
+WDCB: 2
OK
AT+WDCB=1
Note: Select A-band Cellular as fallback.
OK
Values: <value>
0 No fallback. Only entries in the PRL are scanned.
1 A-band Cellular is selected as fallback.
2 B-band Cellular is selected as fallback.
Roaming Indication +WROM
Description: This response indicates that the roaming status has changed. This command can also be used in
a read only capacity in order to read the roaming status at any time.
Syntax: Response Syntax: +WROM: <roam>
Command Possible Responses
AT+WROM +WROM: 0
OK
AT+WROM? +WROM:1
OK
+WROM:1
Values: <roam>
-1 Service Unavailable (For Read Only)
0 Home.
1 Roam Icon ON (affiliated network)
2 Roam Icon Blink (foreign network)
X Enhanced Roaming Indicator value if ERI is enabled
The following values apply to enhanced roaming:
3 Out of Neighborhood
4 Out of Building
5 Roaming - Preferred System
6 Roaming - Available System
7 Roaming - Alliance Partner
8 Roaming - Premium Partner
9 Roaming - Full Service Functionality
10 Roaming - Partial Service Functionality
11 Roaming Banner On
12 Roaming Banner Off
13 - 63 Reserved for Standard Enhanced Roaming Indicator Numbers
64 - 127 Reserved for Non-Standard Enhanced Roaming Indicator Numbers
128 - 255 Reserved