Specifications

ISU AT Command Reference Phase III AT Commands
Iridium Proprietary Version 2.45
20 June 2011 59
7.15 -MSVTR - DTMF Received in Voice Call
Set Command: -MSVTR=[<mode>]
Disable or enable the receiving of DTMF messages from the network.
<mode> takes one of the following values:
0 Receiving of DTMF disabled (default).
1 Receiving of DTMF enabled.
If receiving DTMF is enabled, the ISU sends the following unsolicited result code every time a DTMF
inband signaling data is received from the network while in a voice call:
-MSTRX: <tone>,<event>
where <tone> is the DTMF tone received (‘0’-’9’, ‘#’, ‘*’, ‘A’-’D’) and <event> can be one of the
following:
0 tone stopped (i.e. key released)
1 tone started (i.e. key pressed)
Read Command:
-MSVTR?
Query the current parameter settings. The response is in the form:
-MSVTR: <mode>
Test Command:
-MSVTR=?
List the supported parameter settings. The response is in the form:
-MSVTR: (supported <mode>s)
7.16 -MSVLS - Local DTMF Feedback Selection
Set Command: -MSVLS=[<mode>]
Disable or enable playing of DTMF tones locally (i.e. feedback tones) while in a voice call.
<mode> takes one of the following values:
0 No mute. Play all DTMF tones (default) when pressed or received while in voice call.
1 Enable mute mode. Mute both pressed or received DTMF tones while in voice call.
Read Command:
-MSVLS?
Query the current parameter settings. The response is in the form:
-MSVLS: <mode>
Test Command:
-MSVLS=?
List the supported parameter settings. The response is in the form:
-MSVLS: (supported <mode>s)
Note: DTMF generated with the –MSVTS command is never played back locally as tones and is therefore
neither played nor muted under control of the –MSVLS command.
This command does not support command concatenation in the 9555 and 9555A Handsets.