Field Setting
Enable media encryption
(SRTP) (Only visible if Security
(TLS, SRTP) License is loaded)
(Optional)
If enabled, external SRTP is supported and optional. It
must be negotiated with the remote endpoint.
Note: If external SRTP is enabled, the number of avail-
able voice channels on a Spectralink IP-DECT Server-
/media resource is reduced from 32 to 16 (if a codec card
is used from 24 to 16).
Default value: Enabled
Require media encryption
(SRTP) (Only visible if Security
(TLS, SRTP) License is loaded)
(Optional)
If enabled, the usage of SRTP is required and SRTP
must be negotiated with the remote endpoint. If nego-
tiation of SRTP with the remote endpoint is unsuccessful,
call establishment is aborted.
Default value: Disabled
Include lifetime in SDES offers
(Only visible if Security (TLS,
SRTP) License is loaded)
(Optional)
Handles the RFC 4568 SRTP lifetime key parameter in
SDP offers.
Default value: Disabled
Include MKI in SDES offers
(Only visible if Security (TLS,
SRTP) License is loaded)
(Optional)
Handles the RFC 4568 SRTP Master Key Index Para-
meter in SDP offers.
Default value: Disabled
Enable ICE (Optional) If enabled, support for Interactive Connectivity Estab-
lishment (ICE) (RFC 5245) is allowed.
Enable TURN (Optional) If enabled, support for Traversal Using Relays around
NAT (TURN) (RFC 5766) is allowed.
TURN server (Optional) Enter TURN server address.
TURN username (Optional) Enter TURN server username.
If left blank, the per-user authentication username will be
used.
TURN password (Optional) Enter TURN pass word.
If left blank, the per-user authentication password will be
used.
SIP Configuration - Call status
Play on-hold tone (Optional) If enabled, on-hold tone is received in remote end when
placed on hold.
Note: This might conflict with Music-on-Hold.
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