User's Manual

SC14CVMDECT SF Cordless Voice Module
© 2012 Dialog Semiconductor B.V. 20 July 1, 2014 v1.6
4.5.2 Earpiece mode
In Earpiece mode (Handset speaker) an artificial
sidetone is generated. The level of the sidetone can be
adjusted and setup in the VES through parameter
fields Audio.Earp.Vol.Elementx, SideToneGain and
Audio.Heads. Elementx.SideToneGain. In Earpiece
mode it is possible to adjust the volume in the Earpiece
via API calls. In Earpiece mode the PP audio is routed
as shown in Figure 11.
4.5.3 Alert mode
The Alert mode is for generating tones and melodies
on the Speakerphone loudspeaker. In Alert mode it is
possible to adjust the volume in the speaker via API
calls. Inband tones will be affected by the volume
adjustments, since the volume control takes place after
tones are added to the signal. Figure 11 shows the
Audio flow.
4.6 CALL HANDLING
4.6.1 FP to PP call
When the FP initializes a call to a PP, a radio connec-
tion is set up to all PP applications to make it possible
for the PP application software to indicate that there is
an incoming call.
It is possible to configure the ringing indication using
broadcast to make all 6 PPs ringing.
4.6.2 PP to FP call
When the MMI software signals the PP to establish a
call, the PP opens the radio connection to the FP.
4.6.3 Intercom
Figure 15 shows the audio routing of an internal call
between PP1 and PP2. In the FP no transcoding takes
place.
4.6.4 Conference
Figure 16 shows the audio routing of a 9-party confer-
ence call.
4.6.5 Page call
The Page call is a FP functionality used to locate the
registered PPs. FP paging does not establish a normal
audio connection and is terminated when answered by
the PP.
4.7 TONE/MELODY HANDLING
The tone component handles the generation of various
tones in the device. Both tones/melodies in a PP con-
figuration are supported.
The main features of the tone component are:
• Ringer tones and melodies (7-tone polyphonic)
• Alert tones (key sound, error tones, confirmation
tones, etc.)
• Inband tones (dial tone, net-congestion tone, busy
tone, etc.)
• Single tone generation
4.8 DATE AND REAL-TIME CLOCK
The FP has a real-time clock feature, which (when acti-
vated) broadcasts the date and time of day to the PPs.
Activation of the date and real-time clock is done by
setting the date and time via the PP.
The clock supports hours, minutes and date. The date
supports leap years. Daylight saving time is not sup-
ported and must be handled by the MMI application.
The PP clock is synchronized with the FP every time a
broadcast is received. If the PP goes out-of-lock, the
PP itself calculates the clock time until the PP is again
within the range of the FP. The updated clock time can
be read locally via the MMI software.
To adjust the clock in the FP, a service connection can
be set up via commands from the PP.
The clock can also be read and set directly from an
external microprocessor or through the MMI software
on the FP.
The real-time clock accuracy depends directly on the
Figure 15 Intercom connection
CVMDECT
FP
CVMDECT
PP2
CVMDECT
PP1
PCM
Figure 16 Conference connection
CVMDECT
PP4
CVMDECT
PP1
4CH PCM
MIX
CVMDECT FP
Analog