Siemens M20 Terminal Technical Description page 81

Siemens Information and Communication Products
AT+CRLP Select radio link protocol param. for orig. non-transparent data call
Test command Response
AT+CRLP=? TA returns values supported by the TA as a compound value. If ME/TA supports several RLP ver-
sions <verx>, the RLP parameter value ranges for each <verx> are returned in a separate line.
Note:
<verx> is not present).
+CRLP: (list of supported <iws>s), (list of supported <mws>s), (list of supported <T1>s), (list of
supported <N2>s), (list of supported <ver1>s), (list of supported <T4>s)
+CRLP: (list of supported <iws>s), (list of supported <mws>s), (list of supported <T1>s), (list of
supported <N2>s), (list of supported <ver2>s), (list of supported <T4>s)
...
OK
Parameter
see set command
Read command Response
AT+CRLP? TA returns current settings for each supported RLP version <verx>. Only RLP parameters appli-
cable to the corresponding <verx> are returned.
Note:
<verx> is not present).
+CRLP: <iws>,<mws>,<T1>,<N2>[,<ver1>[,<T4>]]
+CRLP: <iws>,<mws>,<T1>,<N2>[,<ver2>[,<T4>]]
...
OK
Parameter
see set command
Set command Response
AT+CR- TA sets radio link protocol (RLP) parameters used when non-transparent data calls are originated.
LP=[<iws>[,<mws
Note:
>[,<T1>[,<N2>[,<
(e.g. <ver> may not be available if device supports only versions 0 and 1).
ver>[,<T4>]]]]]]
OK
Parameter
<iws>
<mws>
<T1>
<N2>
<ver>
<T4>
Reference Note
GSM 07.07
Version 8 dated 15.03.00
versions 0 and 1 share the same parameter set. TA returns only one line for this set (where
versions 0 and 1 share the same parameter set. TA returns only one line for this set (where
available command subparameters depend on the RLP versions implemented by the device
0-61
0-61
39-48-255
1-6-255
0-2 RLP version number in integer format; when version indication is not present
it shall equal 0.
Note: versions 0 and 1 share the same parameter set.
0-5-255 resequencing period in integer format, in units of 10 ms
Note: default values and value ranges depend on RLP version; refer to GSM
04.22 [18]
Interworking window size (IWF to MS)
Mobile window size (MS to IWF)
Acknowledgment timer T1 in 10 ms units)
Re-transmission attempts N2
AT command interface
A
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