Field Setting
Subscription expire(sec) Enter the number of seconds before MWI subscription will be
renewed.
Default value: 3600 sec
SIP Configuration - Media
Packet duration(msec) Packet duration for transmitted RTP Packets.
Possible values: 10, 20 or 40 msec.
Media type of service (TOS/Diff-
serv)
TOS/Diffserv used for RTP (Media) signaling entered in
decimal.
Default value: 184 (EF - Expedited Forwarding)
Media 802.1p Class-of-Service This is the 802.1p PCP and must be between 0 and 7. The
setting requires VLAN tagging.
Default value: 5
Port range start Port range start for local RTP ports.
Default value: 58000
Codec priority Define the priorities of codecs.
Possible values: PCMU, PCMA, G.726 or G.729.
SDP answer with preferred codec
(Optional)
Specifies if the media handling should ignore the remote
SDP offer codec priorities.
SDP answer with a single codec
(Optional)
Specifies if the media handling should provide only a single
codec in SDP answers.
Ignore SDP version (Optional) Ignore the version of the SDP received from remote end-
points.
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 available
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 negotiation of SRTP
with the remote endpoint is unsuccessful, call establishment
is aborted.
Default value: Disabled
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