Specifications

Chapter 8 – Network Service Commands
Multi-Tech Systems, Inc. AT Commands for EDGE (E1) Modems (S000474A) 127
8.13 AT^SALS Alternate Line Service
Description: This command is designed to support Alternate Line Service. This allows the subscriber to use
two voice numbers on the same SIM card (service requires a dual line SIM card).
The write command enables or disables the presentation of <view> and specifies the <line> used
for outgoing calls.
The read command returns the presentation mode of <view> and the currently selected <line>.
Syntax: Test Command: AT^SALS=?
Response: ^SALS:(list of supported <view>s), (list of supported <line>s)
OK
Read Command: AT^SALS?
Response: ^SALS: <view>, <line>
OK
ERROR
Write Command: AT^SALS=<view>[, <line>]
Response: OK
ERROR
Parameter:
<view>
Controls the presentation mode of the URC “^SALS” which indicates the line number used by an incoming call:
0 Disables indication of the called line. Default. (This is the factory default value and can be restored to '0'
with AT&F. Also, this is a powerup default which is not stored at power down).
1 Enables indication of the called line
<line>
Selects the line to be used for outgoing calls.
1 ALS Line 1. Default. (This is the factory default value and can be restored to '1' with AT&F).
2 ALS Line 2
Unsolicited Result Code:
If switched on with <view>=1:
^SALS: <line>
Indicates the line used by an incoming call.
Notes:
• If a non ALS SIM is inserted, the <line> will be reset to line 1 as well.
• This command is PIN protected.
• This command is not supported in airplane mode.
Example:
AT^SALS=1,1 Line 1 has been selected for outgoing calls. “^SALS” URC is enabled.
RING You receive a notification that you have an incoming call on line 2.
^SALS: 2
8.14 AT^SHOM Display Homezone
Description: The AT^SHOM returns the homezone state. The result is valid only, if network registration state
<stat> is 1 (registered) (see AT+CREG).
The feature is available only for supported network operators (02 Germany) and requires a
suitable SIM card. If the homezone feature is not supported by the network operator or SIM card,
result is always 0.
Syntax: Test Command: AT^SHOM=?
Response: OK
Exec Command: AT^SHOM
Response: ^SHOM: <homezonestate>
OK
ERROR
+CME ERROR: <err>
Parameter:
<homezonestate>
0 ME is out of Homezone
1 ME is within the Homezone
2 ME is within Cityzone
Notes:
• This command is PIN protected.
• This command is not supported in airplane mode.