AudioCodes Mediant 800B User Manual page 313

User's Manual
Parameter
Web: Progress Indicator to IP
CLI: prog-ind-to-ip
[IpProfile_ProgressIndicator2IP]
Web: Copy Destination Number
to Redirect Number
CLI: copy-dst-to-redirect-
number
[IpProfile_CopyDest2RedirectN
umber]
Version 6.8

ISDN: Sending a 183 response depends on the ISDN PI. It
is sent only if PI is set to 1 or 8 in the received Proceeding
or Alerting PRI messages. Sending 183 response also
depends on the
ReleaseIP2ISDNCallOnProgressWithCause parameter,
which must be set to any value other than 2.

See also the IgnoreAlertAfterEarlyMedia parameter. This
parameter allows, for example, to interwork Alert with PI to SIP
183 with SDP instead of 180 with SDP.

You can also configure early SIP 183 response immediately
upon the receipt of an INVITE, using the EnableEarly183
parameter.

Analog: To send a 183 response, you must also set the
ProgressIndicator2IP parameter to 1. If set to 0, a 180 Ringing
response is sent.

The corresponding global parameter is EnableEarlyMedia.
Defines the progress indicator (PI) sent to the IP.

[-1] Not Configured = (Default)

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 IP after receiving ISDN Alerting or (for CAS)
after placing a call to 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.
Enables the device to copy the called number, received in the SIP
INVITE message, to the redirect number in the outgoing Q.931
Setup message, for IP-to-Tel calls. Thus, even if there is no SIP
Diversion or History header in the incoming INVITE message, the
outgoing Q.931 Setup message will contain a redirect number.

[0] Disable (default).
313
19. Coders and Profiles
Description
Mediant 800B Gateway and E-SBC