Yealink SIP-T21 E2 Administrator's Guide

Configuring Basic Features
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This field appears only if Auto Linekeys is enabled.
4. Click Confirm to accept the change.
Multiple Call Appearances
You can enable each registered line on the phone to support multiple concurrent calls. For
example, you can place one call on hold, switch to another call on the same registered line, and
have both calls display.
You can set the maximum number of concurrent calls per line key on a phone or a per-line
basis. For example, if you configure the maximum number of concurrent calls per line key for
account 1 to three, you can only have three call appearances on line 1. The additional incoming
calls will be rejected. If you assign a registered line to multiple line keys (refer to Multiple Line
Keys per Account), the number of concurrent calls applies to all line keys. That is, you can have
three call appearances per line key.
Procedure
Multiple call appearances can be configured using the configuration files.
Central Provisioning
(Configuration File)
<y0000000000xx>.cf
g
Specify the number of concurrent calls for
each line key on a phone basis.
Parameter:
phone_setting.call_appearance.calls_per_lin
ekey
<MAC>.cfg
Specify the number of concurrent calls for
each line key on a per-line basis.
Parameter:
account.X.phone_setting.call_appearance.ca

Yealink SIP-T21 E2 Specifications

General

Brand	Yealink
Model	SIP-T21 E2
Category	IP Phone
Language	English