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The IMEI of each channel can be programmed manually. An exact 15-digit number must be entered; otherwise,
the number entered is ignored and the old IMEI will still be used. The device calculates the check digit and then
replace the last digit. However, the device does not check for the validity of the TAC.
The IMEI Auto Change option enable the device to change only the “CCCCCC” portion of an IMEI number. The
parameter Change Period defines how often the IMEI Auto Change should occur. The first IMEI Auto Change
takes place when the Change Period expires the first time after the last
is pressed. The default
value for Change Period is 60 (i.e. 1 hour). The minimum value allowed is 10.
A random IMEI (only the portion “CCCCCC” is changed; TAC portion remain unchanged) can also be assigned by
enabling the option Set Random IMEI when Module Powers up. This feature is important to make sure that a
new IMEI is assigned to each GSM channel whenever it powers up. A GSM channel powers up when the device is
performing a cold / warm boot or when the GSM module is turned on via the web interface when it is in the Shut
Down state. In the case of replacing a new SIM card (GSM module must be shut down first), this will insure that a
new IMEI is used for the GSM registration with the new SIM cad.
5.3.13 SMS
This section defines how SMS are
Summary of Contents for GoIP
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