Yealink SIP-T21 E2

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
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Parameters
Permitted Values
Default
sip.request_validation.digest.event
A valid string
Blank
Description:
Configures which events specified within the Event header of SUBSCRIBE or NOTIFY request
should be validated when performing the digest authentication.
If it is left blank, all events will be validated.
Web User Interface:
None
Phone User Interface:
None