Yealink SIP-T2 SERIES Administrator's Manual page 505

Procedure
Send user=phone can be configured using the configuration files or locally.
Configuration File
Local
Details of the Configuration Parameter:
account.X.enable_user_equal_phone
Description:
Enables or disables the IP phone to add ―user=phone‖ to the SIP header of the
INVITE message for account X.
0-Disabled
1-Enabled
X ranges from 1 to 16 (for SIP VP-T49G/SIP-T48G/T46G/T29G)
X ranges from 1 to 12 (for SIP-T42G)
X ranges from 1 to 6 (for SIP-T41P/T27P)
X ranges from 1 to 3 (for SIP-T40P/T23P/T23G)
X ranges from 1 to 2 (for SIP-T21(P) E2)
X is equal to 1 (for SIP-T19(P) E2/CP860)
Web User Interface:
<MAC>.cfg
Web User Interface
Parameter
Configuring Basic Features
Configure send user=phone
feature on a per-line basis.
Parameters:
account.X.enable_user_equal_ph
one
Configure send user=phone
feature on a per-line basis.
Navigate to:
For
SIP-T48G/T46G/T42G/T41P/T40P/T2
9G/T27P/T23P/T23G/T21(P)
E2/T19(P) E2/CP860:
http://<phoneIPAddress>/servlet?
p=account-adv&q=load&acc=0
For SIP VP-T49G:
http://<phoneIPAddress>/servlet?
m=mod_data&p=account-adv&q
=load&acc=0
Permitted Values
0 or 1
Default
0
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