MTCMR-G-F4 Multi-Tech Systems, MTCMR-G-F4 Datasheet - Page 149

• 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

Important: GPRS commands are not available under GSM-only software.
Define PDP Context +CGDCONT
Multi-Tech Systems, Inc. GPRS AT Commands Reference Guide (Document Number S000293J)
Description:
Values:
Chapter 15 – GPRS commands
This command specifies PDP context parameter values for a PDP context identified by the local context
identification parameter, <cid>.
Four PDP contexts can be defined through the software.
A special form of the set command, +CGDCONT= <cid> causes the values for context number <cid> to
become undefined.
The test command returns values supported as a compound value. If the modem supports several PDP
types, <PDP_type>, the parameter value ranges for each <PDP_type> are returned on a separate line.
The read command returns the current settings for each defined context.
The test command returns values supported as a compound value. If the modem supports several PDP
types, <PDP_type), the parameter value ranges for each <PDP_type> are returned on a separate line.
<cid>
<PDP_type>
<APN>
<PDP_address> a string parameter that identifies the modem in the address space applicable to the
<d_comp> a numeric parameter that controls PDP data compression
<h_comp> a numeric parameter that controls PDP header compression
Notes:
(PDP Context Identifier) a numeric parameter (1-4) which specifies a particular PDP context
definition. The parameter is local to the DTE-modem interface and is used in other PDP
context-related commands.
protocol
•
•
0
1
Other values are reserved.
0
1
Other values are reserved.
•
•
(Access Point Name) a string parameter, which is a logical name that is used to select the
GGSN or the external packet data network.
PDP.
If the value is null or omitted, then a value may be provided by the DTE during the PDP
startup procedure or a dynamic address will be requested. The read form of the command will
continue to return the null string even if an address has been allocated during the PDP
startup procedure. The allocated address may be read using the +CGPADDR command.
If the value is null or omitted, then the subscription value will be requested.
IP
PPP Point to Point Protocol
The data compression algorithm (V.42bis) provided in SNDCP is V.42bis.
Four CIDs are available to specify four PDP contexts, but only 11 NSAPIs are available for
PDP activation. Only one can be activated at a time.
Off (default if value is omitted)
On
Off (default if value is omitted)
On
(Packet Data Protocol type) a string parameter which specifies the type of packet data
Internet Protocol
Chapter 15 – GPRS Commands
149