Yealink W53P

Administrator’s Guide for W60P/W53P/W41P DECT Phones
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The default value of User-Agent: Yealink W60B 77.81.0.10
If it is set to Myphone, the User-Agent appears as below:
Yealink W60B 77.81.0.10 Myphone
Permitted Values String within 128 characters
Default Blank
Parameter
account.X.check_cseq.enable
[1]
<MAC>.cfg
Description
It enables or disables the IP phone to check if the CSeq sequence number in the request is lower
than that in the previous request on the same dialog.
Permitted Values
0-Disabled
1-Enabled. If the CSeq sequence number in the request is lower than that in the previous request,
the IP phone will reject the request.
Default 1
Parameter
account.X.check_to_tag.enable
[1]
<MAC>.cfg
Description
It enables or disables the IP phone to check if the To-tag is carried in the To header in renewal
request.
Permitted Values
0-Disabled
1-Enabled. If the To-tag does not exist, the IP phone will reject the request.
Default 0
Parameter sip.send_response_by_request <y0000000000xx>.cfg
Description
It configures where the IP phone retrieves the destination address for response. The IP phone will
then send all SIP response messages to the destination address.
Permitted Values
0-from VIA header in the request message
1-from source address of the request message
Default 1
Parameter sip.requesturi.e164.addglobalprefix <y0000000000xx>.cfg
Description It enables or disables the IP phone to add a global prefix "+" to the E.164 user parts in SIP: URI.
Permitted Values
0-Disabled
1-Enabled, the IP phone will automatically add a prefix "+" to the number in the E.164 format when
you dial using the SIP URI (for example, 862512345000@sip.com).
Default 0
Parameter sip.mac_in_ua <y0000000000xx>.cfg
Description It enables or disables the IP phone to carry the MAC address information in the User-Agent header.
Permitted Values
0-Disabled
1-Enabled, the IP phone will carry the MAC address with colons (for example: 00:15:65:7f:fb:7e) in
the User-Agent header.
2-Enabled, the IP phone will carry the MAC address without colons (for example: 0015657ffb7e) in
the User-Agent header.
Default 0