MTCMR-G-F4 Multi-Tech Systems, MTCMR-G-F4 Datasheet - Page 93

• Manufacturer Part Number: MTCMR-G-F4
• Description: MODEM GPRS QUAD BAND GSM GLOBAL
• Manufacturer: Multi-Tech Systems
• Series: MultiModem® iCellr

Specifications of MTCMR-G-F4

• Frequency: 850MHz, 900MHz, 1.8GHz, 1.9GHz
• Applications: General Purpose
• Interface: RS-232, USB
• Function: Transceiver, Modem
• Data Rate - Maximum: 115.2kbps
• Modulation Or Protocol: GSM, GPRS
• Voltage - Supply: 9 V ~ 32 V
• Package / Case: Module with Case
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Power - Output: -
• Sensitivity: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 881-1151; MTCMR-G-F4

Bearer Type Selection +CBST
Multi-Tech Systems, Inc. GPRS AT Commands Reference Guide (Document Number S000293J)
Description:
Values:
Syntax:
<name> No data compression is provided and only asynchronous modem is supported (<name> = 0).
<ce>
Command syntax: AT+CBST= <speed>, <name>, <ce>
This command applies to both outgoing and incoming data calls, but in a different way. For an outgoing
call, the two parameters (e.g., <speed> and <ce>) apply; whereas, for an incoming call, only the <ce>
parameter applies.
Notes:
<speed>
Command
AT+CBST=?
Note: Test command
AT+CBST=?
Note: Test command
AT+CBST=7,0,1
Note: Ask for a bearer
AT+CBST?
Note: Current values
AT+CBST=81,0,0
Note: Ask for a bearer
12
14(*)
65
66
68
70
71
75(*)
•
•
(*) This speed configures data 14.4 kbps bearers.
0 (default)
1
2
3
4
5
6
7
8
0
1 (default)
2
3
For incoming calls, if <ce> is set to T, only and the network offers NT only or vice versa. Then the
The values 2 and 3 for the <ce> parameter are equivalent to the former values of 100 and 101.
call is released.
Those values are managed for compatibility purposes, but they should no longer be used in the
new code (2 as former 100 and 3 as former 101).
Connection element
Autobauding (modem type: none)
300 bps
1200 bps
1200/75 bps (modem type: V.23)
2400 bps
2400 bps
4800 bps
9600 bps
Specific
9600 bps
1400 bps
300 bps
1200 bps
2400 bps
4800 bps
9600 bps
14400 bps (modem type: V.110)
Transparent only
Non transparent only
Transparent preferred
Non transparent preferred
Possible responses
+CBST: (0-8,65,66,68,70,71),(0),(0-3)
OK
Note: Data 14,4 kbps not supported
+CBST: (0-
8,12,14,65,66,68,70,71,75),(0),(0-3)
OK
Note: Data 14,4 kbps not supported
OK
Note: Bearer supported
+CBST:7,0,1
OK
Note: Command valid
+CME ERROR: 4
Note: Bearer not supported
(modem type: V.21)
(modem type: V.22)
(modem type: V.22bis)
(modem type: V.26ter)
(modem type: V.32)
(modem type: V.32)
(modem type: V.34)
(modem type: V.34)
(modem type: V.110)
(modem type: V.110)
(modem type: V.110)
(modem type: V.110)
(modem type: V.110)
Chapter 11 – Data Commands
93