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Yealink T40G Administrator's Guide

Yealink T40G
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Advanced Features
473
Subscription-State header of the BLA NOTIFY message.
Note: It works only if “account.X.shared_line” is set to 3 (Draft BLA). For teltronnic BLA,
you need to set the value of this parameter to 0 (Disabled). It is not applicable to
T19(P) E2 IP phones.
Permitted
Values
0-Disabled
1-Enabled, the IP phone can only recognize the NOTIFY message whose host field is
the same as the one in the SUBSCRIBE message.
Default
1
Parameter
account.X.bla.subscribe_uri_build_type
[1]
<MAC>.cfg
Description
It configures the constitution of the URI for BLA subscription.
Note: It works only if “account.X.shared_line” is set to 3 (Draft BLA). For teltronnic BLA,
you need to set the value of this parameter to 1 (Enabled). It is not applicable to T19(P)
E2 IP phones.
Permitted
Values
0-From Contact header in the SUBSCRIBE message sent by the server
1-According to the BLA number (configured by the parameter
"account.X.bla_number")
Default
0
Parameter
account.X.bla_subscribe_period
[1]
<MAC>.cfg
Description
It configures the period (in seconds) of the BLA subscription.
Note: It works only if “account.X.shared_line” is set to 3 (Draft BLA). It is not applicable
to T19(P) E2 IP phones.
Permitted
Values
Integer from 60 to 7200
Default
300
Web UI
Account->Advanced->BLA Subscription Period
[1]
X is the account ID. For T54S/T48S/T48G/T46S/T46G/T29G, X=1-16; for T52S/T42G/T42S, X=1-12; for
T41P/T41S/T27P/T27G, X=1-6; for T40P/T40G/T23P/T23G, X=1-3; for T21(P) E2, X=1-2; for T19(P) E2, X=1.
Intercom
Intercom is a useful feature in an office environment to quickly connect with the operator or the secretary.
You can press the intercom key to place a call to a contact that is answered automatically on the contact's
phone as long as the contact is not in an active call. In addition, the intercom key can be used for
monitoring the status changes of a specific line on the phone.
Topics
Intercom Key Configuration

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Yealink T40G Specifications

General IconGeneral
SIP Accounts3
Wall MountableYes
Opus CodecNo
Display2.3 inch 132x64-pixel graphical LCD
NetworkDual-port Gigabit Ethernet
PoEYes
Headset SupportYes, RJ9 port
Power AdapterOptional
Voice CodecsG.722, G.711(A/μ), G.729AB, G.726
Local Phonebook1000 entries

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