Yealink SIP-T21 E2

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
852
Parameters
Permitted Values
Default
Phone User Interface:
None
voice.handset_send
Integer from -50 to 50
0
Description:
Configures the sending volume of the handset.
Note: It is not applicable to CP860/CP920 IP phones. We recommend that you modify this
parameter cautiously. An unreasonable value may render the voice quality bad. If you
change this parameter, the IP phone will reboot to make the change take effect.
Web User Interface:
Features->Audio->Handset Send Volume (-50~50)
Phone User Interface:
None
voice.headset_send
Integer from -50 to 50
0
Description:
Configures the sending volume of the headset.
Note: It is not applicable to CP860/CP920 IP phones. We recommend that you modify this
parameter cautiously. An unreasonable value may render the voice quality bad. If you
change this parameter, the IP phone will reboot to make the change take effect.
Web User Interface:
Features->Audio->Headset Send Volume (-50~50)
Phone User Interface:
None
To configure sending volume via web user interface:
1. Click on Features->Audio.
2. Enter the desired value in the Headset Send Volume (-50~50) field.
3. Enter the desired value in the Handset Send Volume (-50~50) field.