Siemens Mux_guide_v06 - Manual (Page 31)

Multiplexer User's Guide
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Mux_guide_v06 Page 31 of 36 30.06.2004
No Value octet (Length=0)
Switches into SLEEP mode, like AT+CFUN=0
Note:
According to the GSM 07.10 standard PSC supports no value octets. The optional value
octet was added to increase flexibility.
Developed as a substitute to the AT+CFUN command, PSC messages are recommended to
control the various SLEEP modes and to reset the mobile. Be sure not to enter any PSC
messages until after all responses to AT commands have been received and, in the case of
a received URC, the logical ring line has been activated for 1 second and deactivated again.
Please note that the behavior of the logical ring line is identical with the behavior of the
physical RING0 line described in [1].
4.3.11 Non-supported command response (NSC)
This response is sent whenever a command type is not supported by the receiving entity.
Type field:
Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 Bit 8
1 C/R 0 0 1 0 0 0
C/R bit: Indicates whether the sequence is a command or a response .
Value octet:
Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 Bit 8
EA C/R Command type of the non-supported command
C/R bit: Returns the same value as in the received, non-supported command
Frames not recognized by the receiving entity are responded by a NSC-frame.