Prerecorded Tones File - AudioCodes E-SBC User Manual

CHAPTER 44 Loading Auxiliary Files
First Ring On Time [10msec]=80
First Ring Off Time [10msec]=40
Second Ring On Time [10msec]=80
Second Ring Off Time [10msec]=400

Prerecorded Tones File

The Prerecorded Tone (PRT) file contains up to 80 (and maximum of 10 minutes) user-defined
prerecorded tones that can be played by the device. For example, it can be used to play a held tone
(music on hold) to a call party that has been put on hold or a ringback tone to a calling party. The
PRT file overcomes the limitations of the CPT file (such as limited number of predefined tones and
limited number of frequency integrations in a single tone). The PRT file also lets you play different
held and ringback tones for different groups of users. To do this, configure an IP Profile with the
required ringback tone (IPProfile_LocalRingbackTone) and/or held tone (IPProfile_LocalHeldTone)
from the PRT file, and then associate the IP Profile with the required IP Group.
You can define a PRT file for SBC calls with multiple tones of the same tone type, but with different
coders.If one of the tones is defined with the same coder as used in the current call, the device
always selects it to eliminate the need for using DSP resources. If the coder of the tone is the same
as that of the call, DSPs are not required. If they are different, DSPs are required.
●
●
●
●
●
●
●
The tones can be recorded using a standard third-party, recording utility (such as Adobe Audition).
Once recorded, you need to combine the recorded files into a single and loadable PRT file (.dat),
using the latest version of AudioCodes DConvert utility. In DConvert, each recording must be
added to the PRT file with the tone type "acUserDefineTone<Index>". When you want to specify
the tone (ringback or held tone) to play for a specific IP Profile (IPProfile_LocalRingbackTone and
IPProfile_LocalHeldTone parameters), you need to use this index number. For more information on
the DConvert utility, refer to the
.dat file, you need to load it to the device (flash memory), using the Web interface (see
Auxiliary Files) or CLI.
You must record the tones (raw data files) with the following properties:
■ Coders: G.711 A-law, G.711 µ-law, or G.729
■ Rate: 8 kHz
■ Resolution: 8-bit
■ Channels: mono
The PRT file only generates (plays) tones; detection of tones is according to the
CPT file.
The PRT file can be up to 4 megabytes in size.
If the PRT file contains a tone that also exists in the CPT file, the tone in the PRT
file is played instead (i.e., overrides the tone in the CPT file).
Playing tones from the PRT file is applicable to Gateway and SBC calls.
If the coder defined for the tone in the PRT file is the same as that used by the
current call, then DSPs are not required for playing the tone. If the coders are
different, DSPs are required.
The device requires DSPs for local generation of tones.
The PRT file supports only the ringback tone and hold tone for SBC calls.
DConvert Utility User's
Mediant 1000 Gateway & E-SBC | User's Manual
Guide. Once you have created the PRT
- 867 -
Loading