MTCMR-C1-GP-N2 Multi-Tech Systems, MTCMR-C1-GP-N2 Datasheet - Page 88

• Manufacturer Part Number: MTCMR-C1-GP-N2
• Description: MODEM CELLULAR DUAL CDMA
• Manufacturer: Multi-Tech Systems
• Series: MultiModem® iCellr

Specifications of MTCMR-C1-GP-N2

• Function: Transceiver, CDMA, Modem
• Modulation Or Protocol: CDMA2000
• Frequency: 800MHz, 1.9GHz, 1575.42MHz
• Applications: Sprint Networks (USA)
• Interface: RS-232, USB
• Sensitivity: -161dB
• Data Rate - Maximum: 153.6kbps
• Voltage - Supply: 9 V ~ 32 V, USB
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 881-1096

Initialize Voice Parameters +VIP
Description:
Syntax:
Audio Loopback &T
Description:
Syntax:
Values:
Multi-Tech Systems, Inc. CDMA C1 AT Commands Reference Guide (PN S000478C)
This resets audio parameters back to factory default values for the currently selected audio path
(See +SPEAKER).
The following parameters are restored:
Command syntax: AT+VIP
This command is used to perform audio loop back of the current audio path. This command can
be used to validate the audio loop. This is a standard Hayes
Command syntax: AT&T<num>
<num>
Command
AT+VIP
Command
AT&T0
AT&T1
0
1
2
3
•
•
•
•
•
•
•
Gain control (+VGR, +VGT)
Speaker & microphone selection (+SPEAKER)
Echo cancellation (+ECHO)
Side tone selection (+SIDET)
Digital gain (+WDGT, +WDGR)
Microphone gain enable (+MGE)
Loudspeaker volume level (+CLVL)
Audio loopback of off.
Audio loopback for PCM interface is enabled.
Audio loopback for DSP interface is enabled.
Audio loopback for Remote End is enabled.
OK
Note: Audio loopback is off.
OK
Note: Audio loopback is on.
Possible Responses
Possible Responses
OK
Note: Command valid
®
modem AT command.
Chapter 15 – Audio Commands
88