Mitel 6867i Administrator's Manual page 599

Additionally the "sip send sips over tls" parameter allows administrators the ability to manually
configure the IP phones to use either the SIP or SIPS URI scheme when TLS or persistent TLS
is enabled. Disabling the "sip send sips over tls" parameter (i.e. defining the parameter as
"0" in the configuration files) ensures the IP phones use the SIP URI scheme when TLS or
persistent TLS is enabled. Enabling the parameter (i.e. defining the parameter as "1") ensures
the phones use the SIPS URI scheme in such scenarios. The SIPS URI scheme is used by
default.
CONFIGURING TLS USING THE CONFIGURATION FILES
You use the following parameters to configure TLS in the configuration files:
• sip transport protocol
• sips persistent tls
• sip persistent tls keep alive
• sip send sips over tls
• sips root and intermediate certificates
• sips local certificate
• sips private key
• sips trusted certificates
CONFIGURATION FILES
For the specific parameters you can set in the configuration files for setting TLS, see Appendix
A, the section, "Transport Layer Security (TLS) Settings"
Advanced Operational Features
on .
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