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Siemens MC35 User Manual

Page 159

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AT Command Set

MC35_ATC_01_V03.02

Page 159 of 228

13.03.2002

6.3.2 ATH Manual rejection of a network request for PDP context activation

Execute command

ATH

Response

The V.25ter 'H' or 'H0' (On-hook) command may be used to reject a network
request for PDP context activation announced by the unsolicited result code
RING
or
+CRING: GPRS ,

The MT responds with
OK

Reference

GSM 07.07

Note

• In contrast to GSM 07.07 it is possible to cancel a connection with ATH after

a break. This is done for compatibility reasons due to the “dial-up network“
(“DFÜ-Netzwerk“) drivers of Microsoft

ã

Windows

â

.

• ATH is used as a standard V.25ter AT Command, too. See Chapter 2.12.

Using ATH while GPRS is active (PDP context is activated or online):
• CAUTION: The execution of ATH cancels an active PDP context. This takes

effect no matter whether ATH was used to end a voice or data (CSD) call, to
manually reject a network requested PDP context activation as described
above or to terminate a call on one of the virtual channels in Multiplex mode.
The context deactivation can be avoided by terminating a current call with
AT+CHLD=1 instead of ATH. See Chapter 4.14 for AT+CHLD.