Siemens M20 Terminal

AT command interface
Version 8 dated 15.03.00 81
Siemens Information and Communication Products
A
AT+CRLP Select radio link protocol param. for orig. non-transparent data call
Test command
AT+CRLP=?
Response
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:
versions 0 and 1 share the same parameter set. TA returns only one line for this set (where
<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
AT+CRLP?
Response
TA returns current settings for each supported RLP version <verx>. Only RLP parameters appli-
cable to the corresponding <verx> are returned.
Note:
versions 0 and 1 share the same parameter set. TA returns only one line for this set (where
<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
AT+CR-
LP=[<iws>[,<mws
>[,<T1>[,<N2>[,<
ver>[,<T4>]]]]]]
Response
TA sets radio link protocol (RLP) parameters used when non-transparent data calls are originated.
Note:
available command subparameters depend on the RLP versions implemented by the device
(e.g. <ver> may not be available if device supports only versions 0 and 1).
OK
Parameter
<iws> 0-61 Interworking window size (IWF to MS)
<mws> 0-61
Mobile window size (MS to IWF)
<T1> 39-48
-255 Acknowledgment timer T1 in 10 ms units)
<N2> 1-6
-255 Re-transmission attempts N2
<ver> 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.
<T4> 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]
Reference
GSM 07.07
Note