Yealink SIP-T2 SERIES Administrator's Manual page 877

Parameters
Configures the type of transport protocol for account X.
0-UDP
1-TCP
2-TLS
3-DNS-NAPTR
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:
Account->Register->SIP Server Y->Transport
Phone User Interface:
None
security.trust_certificates
Description:
Enables or disables the IP phone to only trust the server certificates in the Trusted
Certificates list.
0-Disabled
1-Enabled
If it is set to 0 (Disabled), the IP phone will trust the server no matter whether the
certificate sent by the server is valid or not.
If it is set to 1 (Enabled), the IP phone will authenticate the server certificate based
on the trusted certificates list. Only when the authentication succeeds, the IP phone
will trust the server.
Note: If you change this parameter, the IP phone will reboot to make the change
take effect.
Web User Interface:
Security->Trusted Certificates->Only Accept Trusted Certificates
Phone User Interface:
None
security.ca_cert
Configuring Security Features
Permitted Values
0 or 1
0, 1 or 2
Default
1
2
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