Yealink T21PE2 - Page 556

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
550
T54S/T-
52S
T48S T48G T46S T46G
T42S/T-
41S
T42G/T-
41P
T40P-
/G
T29G
T27-
G
CP9-
20
T23P/T23G-
/T21(P) E2
T19
(P)
E2
Description
public hold
(Flash-
ing)
(Flash-
ing)
(Flash-
ing)
(Flash-
ing)
(Flash-
ing)
/ / /
(Flash-
ing)
/ /
USB flash
drive/PSTN
box is detect-
ing (PSTN
box is only
applicable to
CP920)
/ / / / /
USB flash
drive is
detected
High Defin-
ition Voice