Yealink W53P

Security Features
203
Incoming Signaling Validation
Yealink IP phones support the following three optional levels of security for validating incoming network signaling:
l Source IP address validation: ensure the request is received from an IP address of a server belonging to the set of
target SIP servers.
l Digest authentication: challenge requests with digest authentication using the local credentials for the associated
registered account.
l Source IP address validation and digest authentication: apply both of the above methods.
Topic
Incoming Signaling Validation Configuration
Incoming Signaling Validation Configuration
The following table lists the parameters you can use to configure the incoming signaling validation.
Parameter sip.request_validation.source.list <y0000000000xx>.cfg
Description
It configures the name of the request method for which source IP address validation will be applied.
It is used to ensure the request that is received from the IP address of a SIP server.
Example:
sip.request_validation.source.list = INVITE, NOTIYF
Permitted
Values
A valid string
Default Blank
Parameter sip.request_validation.digest.list <y0000000000xx>.cfg
Description
It configures the name of the request method for which digest authentication will be applied.
It is used to challenge requests with digest authentication that use the local credentials for the associated
registered account.
Example:
sip.request_validation.digest.list = INVITE, SUBSCRIBE
Permitted
A valid string