© 2019 Burnside Telecom Ltd.
Page 17 of 25
Rev 2.1
For example, IPREFIX=00 (default 00). Maximum 4 digits.
MPREFIX
*846*0*[prefix]#
Sets the prefix which determines if the number is destined for the mobile network.
For example, MPREFIX=07 (default 07). Maximum 4 digits.
PPREFIX
*847*1*[prefix]#
Sets a prefix to insert when dialling via the FXO (see CFG27).
For example, PPREFIX=9 (default 9) to access line via PBX. Maximum 4 digits.
Ring back commands using caller ID (CLI)
For phones that support CLI display, the status of the terminal may be determined by dialing various
ring back codes. If the phone does not support CLI, use SMS status commands.
If the caller CLI is not enabled in CFG1 (*81*n#), the ETSI CLI protocol will be used for the ring back
status. If a specific CLI has been selected, that will be used.
*9#
- Provides general status and mobile network. The IMEI is used as the calling number.
*#03#
- Provides state of battery charge.
*#04#
- Provides model number and firmware revision.
*#05#
- Provides signal strength.
*#06#
- Provides IMEI (serial number in the text field).
Note: For *#03#, *#04# & *#05# the calling number is 1234.
Caller ID (CLI) incoming from PSTN
For phones that support CLI display and PSTN connections that provide CLI, CLI information is
passed through the T400 from the PSTN connection regardless of CFG1.
T400LR automatic selection of PSTN
The default settings of the T400LR is to automatically select the PSTN connection when the
connected telephone is taken
“off hook”. To call using the mobile network, dial *9 before the number.
If the PSTN is not connected or faulty, the mobile network will automatically be used.
Options for PTSN line selection are controlled by CFG25, see page 13.
Disabling PSTN on T400LR
If the PSTN connection (FXO) is not going to be used, disabling the port is advised. This slightly
increases the standby time on battery and removes any confusion about line selection. See CFG30
on page 13. After changing this setting, it is necessary to restart the T400LR by turning it off and on
again. If this setting is changed by SMS command, the INIT command will perform the restart.
Caller ID (CLI) sent from T400 mobile call
Own number sending is controlled by CFG2 (*82*n#) but may be overridden for individual calls by
dialling a prefix. To send CLI dial *31# before the number, to suppress CLI dial #31# before the
number.
