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How to adjust audio levels on IP phones by Ed Basart:
The audio levels for the handset, headset and speaker are set to
default values when the phone boots. These values can be overridden
by configuration file settings. The phone supports multiple
configuration files, and the last setting encountered in a
configuration file wins. The base configuration file for each phone
type is created by the installer, so although new values may be set
in these files, they will be lost when the system is upgraded.
Customized audio levels should be set in customized configuration
files rather than the base configuration files. Below is a table
showing phone name, model and file names:
---------- -------- ------------- ------------- -----------------
--
ShorePhone Name on Model Name on Base Custom
Name Top of Barcode Label Configuration File Name
Phone Underside of File Name
c:\Inetpub\ftproot\
Phone
---------- -------- ------------- ------------- -----------------
--
210 210 S1 shore_s1.txt s1custom.txt
210A 210 S1A shore_s1a.txt s1custom.txt
530 530 S2 shore_s2.txt s2custom.txt
560 560 S6 shore_s6.txt s6custom.txt
There are four sets of audio levels that can be custom configured:
headset, handset, speaker and ringer. Below are the default values
for each type:
HandsetLevels
5157,183,258,365,516,728,1029,1631,2303,3254,4596, 917,13
HeadsetLevels
6144,183,258,365,516,728,1029,1631,2303,3254,4596, 1375,13
RingerLevels 130,258,410,649,1029,1631,2584,4096,6492,10284
SpeakerLevels
4096,258,410,649,1029,1631,2584,4096,6492,10289,16 306,13
Here are the parameter definitions:
HandsetLevels
TxGain,RxGain1,RxGain2,RxGain3,RxGain4,RxGain5,RxG ain6,RxGain7
RxGain8,RxGain9,RxGain10,SideTone,Handset DTMF
Attenuation
HeadsetLevels
TxGain,RxGain1,RxGain2,RxGain3,RxGain4,RxGain5,RxG ain6,RxGain7
RxGain8,RxGain9,RxGain10,SideTone,Headset DTMF
Attenuation
RingerLevels
RxGain1,RxGain2,RxGain3,RxGain4,RxGain5,RxGain6,Rx Gain7
RxGain8,RxGain9,RxGain10
SpeakerLevels
TxGain,RxGain1,RxGain2,RxGain3,RxGain4,RxGain5,RxG ain6,RxGain7
RxGain8,RxGain9,RxGain10,SideTone,Speaker DTMF
Attenuation
The "TxGain" parameter sets the level of the audio transmitted from
the phone onto the network. The "RxGain" values correspond to each
of the 10 volume setting levels shown when one adjusts the volume on
the phone. "SideTone" is the audio picked up from the microphone
and transmitted to the speaker (speakerphone, handset or headset
speaker) that provides feedback to the user that the phone is
working speaking. Customer experience has shown that sometimes the
RxGains are not high enough and need to be customized for an
individual system. SideTone gain is very subjective, and is
sometimes lowered and sometimes raised. DTMF Attenuation sets the
receive DTMF level that the phone user will hear.
The Plantronics CS50 wireless headset provides its own side tone,
plus inserts 20 ms delay between the headset and the phone, which
causes some people to say they hear echo when using the Plantronics
headset, and in this case headset side tone may need to be
reduced. When you speak, Plantronics does reduce the gain on the
speaker by -24dB, but when you stop speaking, the gain is turned up,
and you can hear the last little bit echoed in your ear.
For example, inserting the following line in "s2custom.txt"
or "s6custom.txt" and rebooting the phone increases the headset
volume settings 11 dB at the highest setting, which may be required
in noisy environments:
HeadsetLevels
6144,183,258,409,649,1028,1630,2899,6491,10288,143 33,1375,13
The same levels could be used for "HandsetLevels", and also for the
210 phone. Inserting the following line reduces the headset side
tone by 9.5 dB, which some CS50 users prefer:
HeadsetLevels
6144,183,258,365,516,728,1029,1631,2303,3254,4596, 460,13
Minimum gain values are 0 and maximum are 32536. Setting values
very high may saturate the speaker and create poor sound quality.
N.B.: You can change gains on an individual phone by changing the
configuration files and then rebooting that phone. But eventually
all phones on the system will obtain these values when they
eventually reboot. We do not currently have the ability to
indivually configure ShoreTel IP phone.
The audio levels for the handset, headset and speaker are set to
default values when the phone boots. These values can be overridden
by configuration file settings. The phone supports multiple
configuration files, and the last setting encountered in a
configuration file wins. The base configuration file for each phone
type is created by the installer, so although new values may be set
in these files, they will be lost when the system is upgraded.
Customized audio levels should be set in customized configuration
files rather than the base configuration files. Below is a table
showing phone name, model and file names:
---------- -------- ------------- ------------- -----------------
--
ShorePhone Name on Model Name on Base Custom
Name Top of Barcode Label Configuration File Name
Phone Underside of File Name
c:\Inetpub\ftproot\
Phone
---------- -------- ------------- ------------- -----------------
--
210 210 S1 shore_s1.txt s1custom.txt
210A 210 S1A shore_s1a.txt s1custom.txt
530 530 S2 shore_s2.txt s2custom.txt
560 560 S6 shore_s6.txt s6custom.txt
There are four sets of audio levels that can be custom configured:
headset, handset, speaker and ringer. Below are the default values
for each type:
HandsetLevels
5157,183,258,365,516,728,1029,1631,2303,3254,4596, 917,13
HeadsetLevels
6144,183,258,365,516,728,1029,1631,2303,3254,4596, 1375,13
RingerLevels 130,258,410,649,1029,1631,2584,4096,6492,10284
SpeakerLevels
4096,258,410,649,1029,1631,2584,4096,6492,10289,16 306,13
Here are the parameter definitions:
HandsetLevels
TxGain,RxGain1,RxGain2,RxGain3,RxGain4,RxGain5,RxG ain6,RxGain7
RxGain8,RxGain9,RxGain10,SideTone,Handset DTMF
Attenuation
HeadsetLevels
TxGain,RxGain1,RxGain2,RxGain3,RxGain4,RxGain5,RxG ain6,RxGain7
RxGain8,RxGain9,RxGain10,SideTone,Headset DTMF
Attenuation
RingerLevels
RxGain1,RxGain2,RxGain3,RxGain4,RxGain5,RxGain6,Rx Gain7
RxGain8,RxGain9,RxGain10
SpeakerLevels
TxGain,RxGain1,RxGain2,RxGain3,RxGain4,RxGain5,RxG ain6,RxGain7
RxGain8,RxGain9,RxGain10,SideTone,Speaker DTMF
Attenuation
The "TxGain" parameter sets the level of the audio transmitted from
the phone onto the network. The "RxGain" values correspond to each
of the 10 volume setting levels shown when one adjusts the volume on
the phone. "SideTone" is the audio picked up from the microphone
and transmitted to the speaker (speakerphone, handset or headset
speaker) that provides feedback to the user that the phone is
working speaking. Customer experience has shown that sometimes the
RxGains are not high enough and need to be customized for an
individual system. SideTone gain is very subjective, and is
sometimes lowered and sometimes raised. DTMF Attenuation sets the
receive DTMF level that the phone user will hear.
The Plantronics CS50 wireless headset provides its own side tone,
plus inserts 20 ms delay between the headset and the phone, which
causes some people to say they hear echo when using the Plantronics
headset, and in this case headset side tone may need to be
reduced. When you speak, Plantronics does reduce the gain on the
speaker by -24dB, but when you stop speaking, the gain is turned up,
and you can hear the last little bit echoed in your ear.
For example, inserting the following line in "s2custom.txt"
or "s6custom.txt" and rebooting the phone increases the headset
volume settings 11 dB at the highest setting, which may be required
in noisy environments:
HeadsetLevels
6144,183,258,409,649,1028,1630,2899,6491,10288,143 33,1375,13
The same levels could be used for "HandsetLevels", and also for the
210 phone. Inserting the following line reduces the headset side
tone by 9.5 dB, which some CS50 users prefer:
HeadsetLevels
6144,183,258,365,516,728,1029,1631,2303,3254,4596, 460,13
Minimum gain values are 0 and maximum are 32536. Setting values
very high may saturate the speaker and create poor sound quality.
N.B.: You can change gains on an individual phone by changing the
configuration files and then rebooting that phone. But eventually
all phones on the system will obtain these values when they
eventually reboot. We do not currently have the ability to
indivually configure ShoreTel IP phone.
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