Comtrol RM-4 - Manual (Page 5)

Hardware Installation and Specifications RocketModem IV: 2000468 Rev. A - 5
Using RocketModem IV Features
Using RocketModem IV Features
The following subsections discuss using the speaker, Caller ID, Voice mode, and
Low Power Sleep mode.
Note: See the software installation document ( Before Installing the Hardware on
Page 2) for your operating system to reset a modem ports.
Using the Speaker The RocketModem IV includes a speaker, which enables you to listen to the call in
progress and helps you determine the state of the phone line and the modem. This
speaker is shared by all modems on the board and can be controlled for individual
modems by use of AT commands.
The following table lists some of the more commonly used speaker-related AT
commands. For a complete list, see the Conexant AT Commands for CX81801
SmartV.XX, CX06833 SMXXD, CX81300 SmartACF, and CX06827 SCXXD
Modems Reference Manual, Doc. No. 102184B: July 1, 2003.
Using Caller ID The RocketModem IV supports the use of Caller ID services through use of the
+VCID and +VRID commands.
The following page numbers are referenced from the Conexant AT Commands
Reference Manual.
• To enable formatted caller ID, use at+vcid=1.
For detailed information, see Section 3.2.1: Generic Modem Control: +VCID
Caller ID (CID) on Page 3-3.
• To enable formatted retrieval of the last caller information, use at+vrid=0.
For detailed information, see Section 3.2.1: Generic Modem Control: +VRID
Report Retrieved Caller ID (CID) on Page 3-4.
Additional information for these commands, see Table 6-1: Voice Commands on
Page 5-1 and Table 6-6: Events Detectable in the Voice Mode per V.253. Page 5-13.
Using Voice Mode After being put into voice mode, characters entered from the telephone set are
passed on to the application. Enable voice mode using this command: at+fclass=8.
AT
Command
Usage
L
ATL(0, 1, 2, 3). Enter the ATLn command to set the modem speaker
volume, where 0 is the lowest level and 3 is the highest level.
This value is written to S22 bits 0 and 1.
M
ATM(0, 1, 2, 3). Enter the ATMn command to set the modem speaker
mode. This value is written to S22 bits 2 and 3. Valid values are:
• M0 - Speaker always off
• M1 - Speaker on when making call but off when receiving carrier
• M2 - Speaker always on
• M3 - Speaker off when making call but on when answering
&V
Enter AT&V to display the contents of the S-Registers and check the
state of the L and M registers.