Notes, Call control, Hang up call +chup – Synaccess Networks NP-0801DTM User Manual
Page 47: Syntax, Select bearer service type +cbst

3GPP TS 27.007 AT COMMANDS
47
HSPA+ AT Commands Reference Guide
<T2>
Response timer for the multiplexer control channel in units of ten milliseconds.
2‐255
Default: 30 (300 ms). Note: T2 must be longer than T1.
<T3>
Wake up response timer in seconds.
1‐255
Currently not supported, in case of read command 0 is returned.
<k>
Window size, for Advanced operation with Error Recovery options.
1‐7
Currently not supported. For read command, 0 is returned.
Notes
All the CMUX protocol parameters are fixed as defined in GSM07.10 and cannot be changed.
Reference: 3GPP TS 27.007, 3GPP TS 27.010.
Call Control
Hang Up Call +CHUP
Execute command cancels all active and held calls, as well as multi‐party sessions, if running.
Test command returns the OK result code.
Syntax
Command
Command type
AT+CHUP
Execute
AT+CHUP=?
Test
Notes
Reference: 3GPP TS 27.007.
Select Bearer Service Type +CBST
Set command sets the bearer service <name> with data rate <speed>, and the connection element <ce> to be
used when data calls originate. This setting is also used during mobile terminated data call setup, in case of single
numbering scheme calls. See +CSNS.
Read command returns current value of the parameters <speed>, <name> and <ce>.
Test command returns the supported range of values for the parameters.
Syntax
Command
Command type
AT+CBST=[<speed>[,<name>[,<ce>]]]
Set
AT+CBST?
Read
AT+CBST=?
Test