User`s manual

SIP User's Manual 214 Document #: LTRT-83303
Mediant 1000 & Mediant 600
Notes:
• Each coder can appear only once per Coder Group.
• The device always uses the packetization time requested by the remote
side for sending RTP packets. If not specified, the packetization time
(ptime) is assigned the default value.
• Only the packetization time of the first coder in the defined coder list is
declared in INVITE / 200 OK SDP, even if multiple coders are defined.
• For G.729 it is also possible to select silence suppression without
adaptations.
• If the coder G.729 is selected and silence suppression is enabled (for this
coder), the device includes the string 'annexb=no' in the SDP of the
relevant SIP messages. If silence suppression is set to 'Enable w/o
Adaptations', 'annexb=yes' is included. An exception to this logic is when
the remote device is a Cisco gateway (IsCiscoSCEMode).
3.4.5.5.2 Tel Profile Settings
The 'Tel Profile Settings' page allows you to define up to nine different Tel Profiles. You
can then assign these Tel Profiles to the device's channels (in the 'Trunk Group Table'
page), thereby applying different behaviors to different channels.
Notes:
• The following parameters are applicable only to Mediant 1000: 'Enable
Polarity Reversal', 'Enable Current Disconnect', 'MWI Analog Lamp', and
'MWI Display'.
• You can also configure Tel Profiles using the ini file table parameter
TelProfile (refer to ''SIP Configuration Parameters'' on page 323).