Yealink SIP-T21 E2

Appendix
1049
T54S/
T52S
T48S
T48G
T46S
T46G
T42S/
T41S
T42G/
T41P
T40P
/G
T29G
T27G
T27P
T23P/T23
G/T21(P)
E2
T19(P)
E2
CP860
CP920
Description
Callout
Callout
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Line key type is Intercom (intercom
failed state)
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Line key type is DTMF/Prefix
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Line key type is Local Group/XML
Group/LDAP
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Line key type is XML Browser
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Line key type is Conference
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Line key type is Forward
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Line key type is Transfer
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Line key type is Hold/Private Hold
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Line key type is DND
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Line key type is Recall