Yealink T26 User Manual

server will enable the anonymous call function for
your IP phone automatically.
Anonymous Off Code
Set the Anonymous Off Code, When you choose to
disable the anonymous call function on your IP
phone, it will send information to the server, and the
server will disable the anonymous call function for
your IP phone automatically.
Keep Alive Type
Specify the keep alive type, if the type is option, the
phone will send option sip message to server every
NAT Keep Alive Period(s), then the server responses
with 200 to keep alive. If the type is UDP, the phone
will send UDP message to server to keep alive every
NAT Keep Alive Period(s).
Keep Alive Interval
Set examining interval of the server, default is 60
seconds
User Agent
Set the user agent if have, the default is VoIP Phone
1.0
DTMF Type
Select DTMF sent mode, there are three modes:
 DTMF_RELAY
 DTMF_RFC2833
 DTMF_SIP_INFO
 DTMF_AUTO
Different VoIP Service providers may provide
different modes.
Local Port
Set sip port of each line
Ring Type
Set ring type of each line
Enable Via Rport
Enable/Disable system to support RFC3581. Via
rport is special way to realize SIP NAT.
Enable PRACK
Enable or disable SIP PRACK function, suggest use
the default config.
Enable Long Contact
Set more parameters in contact field; connection
with SEM server
Convert URI
Convert # to %23 when send the URI.
Dial Without
Registered
Set call out by proxy without registration;
Ban Anonymous Call
Set to ban Anonymous incoming Call;
Enable DNS SRV
Support DNS looking up with _sip.udp mode
Server Type
Select the special type of server which is encrypted,
or has some unique requirements or call flows.
RFC Protocol Edition
Select SIP protocol version to adapt for the SIP
server which uses the same version as you select.
For example, if the server is CISCO5300, you need
to change to RFC2543; else phone may not cancel
call normally. System uses RFC3261 as default.

Yealink T26 Specifications

General

Brand	Yealink
Model	T26
Category	IP Phone
Language	English