Cmod Call Mode; Chup Hangup Call; Cbst Select Bearer Service Type - Nokia D211 Developer's Manual

8.3.2 +CMOD Call mode

Command
set
+CMOD=<mode>
read
+CMOD?
test
+CMOD=?
Mandatory when alternating calls implemented. 07.07 sections 6.4, 6.6, and annexes E, F.
Note that alternating call answering operations from an external UI may change +CMOD
values.
Note: +CMOD shall be set to zero after a successfully completed alternating
mode call. It shall be set to zero also after a failed answering. The power-up,
factory (&F) and user resets (Z) shall also set the value to zero. This reduces the
possibility that alternating mode calls are originated or answered accidentally.
Alternating call answering operations from an external UI may change +CMOD
values.
Values for <mode>:
0 single mode (default)
1 alternating voice/fax (teleservice 61) – This is a dummy value included for
compatibility reasons.

8.3.3 +CHUP Hangup call

Command
execute
+CHUP
test
+CHUP=?
Mandatory when alternating calls implemented. 07.07 sections 6.5, 6.6, and annexes E, F.
This is an assured procedure to terminate an alternating mode call.

8.3.4 +CBST Select bearer service type

Command
set
+CBST=<speed>,
<name>,<ce>
read
+CBST?
test
+CBST=?
Mandatory when data calls implemented. 07.07 section 6.7.
Parameters:
<speed>:
0 autobauding (automatic selection of speed; this setting is possible in case of 3.1
kHz modem and non-transparent service)
1 300 bps (V.21)
2 1200 bps (V.22)
3 1200/75 bps (V.23)
4 2400 bps (V.22bis)
5 2400 bps (V.26ter)
6 4800 bps (V.32)
Response Default
0
+CMOD: <mode>
+CMOD: (0,1)
Response
+CBST: <speed>,<name>,<ce>
Default
0,0,1
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