GM862 Product Description
80272ST10019a Rev. 10 – 18/09/2008
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved
page 17 of 60
2.12.1
Speech Coding
The
Telit GM862
voice codec supports the following rates:
•
Half
Rate.
•
Full
rate,
•
Enhanced Full Rate
•
Adaptive Multi Rate
2.12.2
SIM Reader
The
Telit GM862-QUAD, GM862-QUAD-PY
and
GM862-GPS
support phase 2 GSM11.14 - SIM 1.8V and 3V.
For 5V SIM operation an external level translator can be added.
The
Telit GM862-QUAD,QUAD-PY and GPS
have an internal built-in SIM card reader that allows also hot
removal of the SIM sensing. Therefore, the SIM can be extracted and reinserted while the module is
still on, so there's no need for an external SIM housing.
NOTE
: the hot removal of the SIM sensing is not supported during power saving mode (+CFUN: 5).
2.12.3
SMS
The
Telit GM862 Family modules
supports the following SMS types:
•
Mobile Terminated (MT) class 0 – 3 with signalling of new incoming SMS, SIM full, SMS read
•
Mobile Originated class 0 – 3 with writing, memorize in SIM and sending
•
Cell Broadcast compatible with CB DRX with signalling of new incoming SMS.
2.12.4
Real Time Clock and Alarm
The
Telit GM862 Family modules
supports the Real Time Clock and Alarm functions through AT
commands, furthermore an alarm output pin (GPIO6) can be configured to indicate the alarm with a
hardware line output.
2.12.5
Data/fax transmission
As for the data and fax capabilities, the
GM862-QUAD,QUAD-PY
and
GPS
support the following:
GM862-QUAD GM862-QUAD-PY
GM862-GPS
GPRS Class 8, MS Class 8
•
•
•
GPRS Class 10, MS Class 8.
•
•
•
CSD up to 14.4 Kbps
•
•
•
Fax service, Class 1 Group 3
•
•
•
2.12.6
Local security management
With lock of Subscriber Identity module (SIM), and security code request at power–up.
