AudioCodes Mediant 1000B - Page 453

Version 7.2 453 Mediant 1000B Gateway & E-SBC
User's Manual 20. Coders and Profiles
Parameter Description
doesn't play a ringback tone to IP and doesn't send 183 or
180+SDP responses.
 Digital interfaces: If the parameter is enabled and
EnableEarlyMedia is set to 1, the device plays a ringback tone
according to the following:

CAS: The device opens a voice channel, sends a 183+SDP
response, and then plays a ringback tone to IP.

ISDN: If a Progress or an Alerting message with PI (1 or 8) is
received from the ISDN, the device opens a voice channel,
sends a 183+SDP or 180+SDP response, but doesn't play a
ringback tone to IP. If PI (1 or 8) is received from the ISDN,
the device assumes that ringback tone is played by the ISDN
switch; otherwise, the device plays a ringback tone to IP after
receiving an Alerting message from the ISDN. It sends a
180+SDP response, signaling to the calling party to open a
voice channel to hear the played ringback tone.
 The corresponding global parameter is PlayRBTone2IP.
Progress Indicator to IP
prog-ind-to-ip
[IpProfile_ProgressIndicator2I
P]
Defines the progress indicator (PI) sent to the IP.
 [-1] = (Default) Not configured:

Analog: Default values are used (1 for FXO interfaces and 0
for FXS interfaces).

Digital ISDN: The PI received in ISDN Proceeding, Progress,
and Alerting messages is used, as described in the options
below.
 [0] No PI =

Analog: For IP-to-Tel calls, the device sends a 180 Ringing
response to IP after placing a call to a phone (FXS) or PBX
(FXO).

Digital: For IP-to-Tel calls, the device sends 180 Ringing
response to the IP after receiving an ISDN Alerting or (for
CAS) after placing a call to the PBX/PSTN.
 [1] PI = 1:

Analog: For IP-to-Tel calls, if the EnableEarlyMedia
parameter is set to 1, the device sends a 183 Session
Progress message with SDP immediately after a call is
placed to a phone/PBX. This is used to cut-through the voice
path before the remote party answers the call. This allows the
originating party to listen to network call progress tones such
as ringback tone or other network announcements.

Digital: For IP-to-Tel calls, if the parameter EnableEarlyMedia
is set to 1, the device sends 180 Ringing with SDP in
response to an ISDN Alerting or it sends a 183 Session
Progress message with SDP in response to only the first
received ISDN Proceeding or Progress message after a call
is placed to PBX/PSTN over the trunk.
 [8] PI = 8: same as PI = 1.
Note: The corresponding global parameter is ProgressIndicator2IP.
Hold
enable-hold
[IpProfile_EnableHold]
Enables the Call Hold feature (analog interfaces) and interworking of
the Hold/Retrieve supplementary service from ISDN to SIP (digital
interfaces). For analog: The Call Hold feature allows users,
connected to the device, to place a call on hold (or remove from
hold), using the phone's Hook Flash button.