Version 6.2 723 February 2011
SIP User's Manual 12. Configuration Parameters Reference
Parameter Description
Each coder type can appear only once per Coder Group.
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.
The device always uses the packetization time requested by the
remote side for sending RTP packets. If not specified, the
packetization time is assigned the default value.
The value of several fields is hard-coded according to common
standards (e.g., payload type of G.711 U-law is always 0). Other
values can be set dynamically. If no value is specified for a
dynamic field, a default value is assigned. If a value is specified
for a hard-coded field, the value is ignored.
If silence suppression is not defined for a specific coder, the value
defined by the parameter EnableSilenceCompression is used.
If 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
is when the remote device is a Cisco gateway
(IsCiscoSCEMode).
The coder G.722 provides Packet Loss Concealment (PLC)
capabilities, ensuring higher voice quality.
A Coder Group can be assigned to an IP Profile (using the
IPProfile parameter) and/or to a Tel Profile (using the TelProfile
parameter).
For an explanation on V.152 support (and implementation of T.38
and VBD coders), see ''V.152 Support'' on page 452.
For a description of using ini file table parameters, see
''Configuring ini File Table Parameters'' on page 368.
Web: IP Profile Settings Table
EMS: Protocol Definition > IP Profile
[IPProfile]
This ini file table parameter configures the IP Profile table. Each IP
Profile ID includes a set of parameters (which are typically
configured separately using their individual "global" parameters). You
can later assign these IP Profiles to outbound IP routing rules (Prefix
parameter), inbound IP routing rules (PSTNPrefix parameter), and IP
Groups (IPGroup parameter).
The format of this parameter is as follows:
[IPProfile]
FORMAT IpProfile_Index = IpProfile_ProfileName,
IpProfile_IpPreference, IpProfile_CodersGroupID,
IpProfile_IsFaxUsed, IpProfile_JitterBufMinDelay,
IpProfile_JitterBufOptFactor, IpProfile_IPDiffServ,
IpProfile_SigIPDiffServ, IpProfile_SCE,
IpProfile_RTPRedundancyDepth, IpProfile_RemoteBaseUDPPort,
IpProfile_CNGmode, IpProfile_VxxTransportType,
IpProfile_NSEMode, IpProfile_IsDTMFUsed,
IpProfile_PlayRBTone2IP, IpProfile_EnableEarlyMedia,
IpProfile_ProgressIndicator2IP, IpProfile_EnableEchoCanceller,
IpProfile_CopyDest2RedirectNumber,
IpProfile_MediaSecurityBehaviour, IpProfile_CallLimit,
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