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SIM800 Series_AT Command Manual_V1.09

2015-08-03

Parameters

See Write Command

Response

TA controls whether or not intermediate result code +CR: <serv> is

returned from the TA to the TE at a call set up.

Parameters

<mode>

0 Disable

1 Enable

Intermediate result code

If enabled, an intermediate result code is transmitted at the point during

connect negotiation at which the TA has determined which speed and

quality of service will be used, before any error control or data

compression reports are transmitted, and before any final result code (e.g.

CONNECT) is transmitted.

+CR:<serv>

Write Command

AT+CR=[<mode

Parameters

<serv>

ASYNC

Asynchronous transparent

SYNC

Synchronous transparent

REL ASYNC Asynchronous non-transparent

REL SYNC

Synchronous non-transparent

GPRS

For GPRS

Parameter Saving

Mode

NO_SAVE

Max

Response

Time

Reference

3GPP TS 27.007

[13]

Note

3.2.31 AT+CRC

Set Cellular Result Codes for Incoming Call Indication

AT+CRC

Set Cellular Result Codes for Incoming Call Indication

Response

+CRC: (list of supported <mode>s)

Test Command

AT+CRC=?

Parameters

See Write Command

Read Command

AT+CRC?

Response

+CRC: <mode>

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