The SBC Core supports playing announcements, tones, and collecting digits.
Tone and Announcement Profile
Tones and announcements are configured by allocating a percentage of DSP cores to tones/announcements. If no transcoding is used, you may allocate up to 100% toward tones/announcements.
When using an external PSX, the PSX returns the tones/announcement profile and announcement or tone to be played in policy/trigger response. The SBCplays out the specified announcement/tone using the specified profile.
Announcement files are stored in the following directory:
End To End Ackand
No CDR Change In End To End Ackto resolve this.
End To End Ackmust be enabled before enabling
No CDR Change In End To End Ackflag. See PSX Manager User Guide for configuration details.
For more information on configuring tones and announcements, see following:
The SBC supports a default tone package with a package ID of “1”. The default package contains the following default tone profile definitions.
Tones are customized by provisioning tone packages and tone profiles. The tone profile feature supports tone generation methods as described in Table 1.
For details to configure tone profiles, see below:
(-50 to +3) dBm
(-50 to +3) dBm
1, 2, 3, 4
Local Ring Back Tones (LRBT)
The SBC Core is configurable to support Local Ring Back Tones as described below.
The SBC generates LRBT in the following conditions:
- Start LRBT upon receipt of 180 without SDP, the SBC.
- Halt LRBT upon receipt of any18x with SDP or any final response.
- Stop LRBT without waiting for media packet arrival.
The SBC supports the following dynamic LRBT functionality related to RFC 3960:
- Do not generate local ringing unless a 180 (ringing) response is received.
- Generate local ringing if a 180 (ringing) is received but no incoming packets are present.
- If a 180 (ringing) is received and incoming packets are present, play incoming packets but do not generate local ringing.
When configured to operate with an external PSX, local ring back tones are provisioned on the PSX on a per-trunk group basis. The PSX returns this information in a policy response.