AudioCodes Mediapack mp-11x, User Manual

Page: 140 / 390

SIP User's Manual 140 Document #: LTRT-65409
MediaPack Series
Notes:
•
Each coder can appear only once.
•
The ptime specifies the packetization time the gateway expects to
receive. The gateway always uses the ptime requested by the remote
side for sending RTP packets. If not specified, the packetization time
(ptime) gets a default value.
•
Only the ptime 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 gateway 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 gateway is a Cisco device (IsCiscoSCEMode).
5.5.5.2 Tel Profile Settings
The
Tel Profile Settings
option is used to define up to nine different Tel Profiles. These
Profiles are used in the 'Endpoint Phone Number Table' screen where they can be
assigned to the gateway's channels, thereby applying different behaviors to different
channels (i.e., ports).
You can also configure Tel Profiles using the
ini
file parameter TelProfile (refer to 'SIP
Configuration Parameters' on page 279 ).