Technical data

WMO2 G900 / G1800 / G1900
WCOM/GSM/WMO2/WMO2ATDOC Friday 21 May 1999
WAVECOM confidential © 68
4.8.3 Cellular result codes +CRC
This command enables a more detailed ring indication, in case of incoming
call (voice or data). Instead of the string "RING", an extended string is used
to indicate which type of call is ringing (e.g. +CRING: VOICE).
These extended indications are:
+CRING: ASYNC for asynchronous transparent
+CRING: REL ASYNC for asynchronous non-transparent
+CRING: VOICE for normal speech.
+CRING: FAX for fax calls
Application to GSM AT+CRC=0 extended reports disabled
GSM to application OK command valid
Application to GSM AT+CRC=1 extended reports enabled
GSM to application OK command valid
4.8.4 Radio link protocol parameters +CRLP
This command allows to change the radio link protocol parameters used for
non transparent data transmission.
Command syntax: AT+CRLP=<up-window_size>,<down-
window_size>,<acknowledgement-timer>,
<retransmission_attempts>, <reset_allowed>
Application to GSM AT+CRLP=10,10,90,10,0 set new parameters
GSM to application OK Command valid
Application to GSM AT+CRLP? Current values
GSM to application AT+CRLP: 10,10,90,10
OK
Command valid