From ProjectDiaStar

Contents 1 Overview 2 Modules 2.1 Tone Detection 2.1.1 Call Progress Analysis 2.1.2 Custom Tone Detection 2.2 Advanced Video 2.3 Video Conferencing 3 Interfaces 3.1 SIP 3.2 ISDN provided via Dialogic® DNI boards 3.3 SS7 signaling provided via Dialogic® DSI boards 3.4 SIGTRAN

Overview

Modules

Tone Detection

Call Progress Analysis

• Busy tone detection, detect 74 out of 76 unique busy/congestion tones used in 97 countries as specified by ITU-T Rec. E., Suppl. #2.
• Ring back detection uses both frequency and cadence detection to detect 83 out of 87 unique ring back tones used in 96 countries as specified by ITU-T Rec. E., Suppl. #2
• Positive voice detection with speed as little as 1/10th of a second
• Positive answering machine detection
• Fax/modem detection
• Intercept detection Detects entire sequence of the North American tri-tone.

Custom Tone Detection

• Up to 20 tone detection rules can be defined
• Single and dual tones with or without cadence
• Tone detection from 300Hz to 3.5kHz

Advanced Video

• Audio / Video Playback and Record
• Synchronization of voice and video streams for playback and recording
• H.263, H.264 and MPEG-4 video codecs
• Video transcoding and video transrating
• Video frame rates of 30, 15, 10, or 6 frames per second
• Video image formats
  • Common Intermediate Format (CIF) PAL at 352 by 288 pixels,
  • Quarter Common Intermediate Format (QCIF) PAL at 176 by 144 pixels
  • Sub-QCIF PAL at 128 by 96 pixels

Video Conferencing

• Video and audio synchronization
• Variable number (1,4,6,9) of tiles (callers' windows)
• Dialplan-controlled image overlay for each conferee
• Transcoding of varied video codecs into the appropriate type for each conferee
• Display of static image into a conference
• Display of a video clip into a conference
• Ad-hoc conferencing
• Controlled conferencing with various "roles"
  • Controller or moderator
  • Presenter with full duplex audio/video
  • Attendee listens to and views conference but is not seen nor heard
• Automatic audio gain control
• Echo cancellation
• DTMF supression

Interfaces

SIP

• G.711, G.722 and G.729 audio codecs

ISDN provided via Dialogic® DNI boards

• Available in form factors with one, two, four, or eight digital network interfaces
• Software configurable T1/E1 interfaces
• Support for a wide range of PSTN protocols including ISDN and CAS signaling

SS7 signaling provided via Dialogic® DSI boards

• A wide range of SS7 link densities - 4 to 128 links - are supported
• Software selectable T1 or E1 interfaces
• Used in conjunction with DNI boards via H.100 CTBus for media bearer channels
• ISDN User Part (ISUP) and Telephony User Part (TUP) signaling protocols

SIGTRAN

• Support for industry standards as well as many country variations
• SIGTRAN layers support graduated throughput capability from 312 Kibps to 19,680 Kibps (equivalent of 4 to 256 SS7 links)
• Used in conjunction with DNI boards via H.100 CTBus for media bearer channels
• SIGTRAN message transport protocols running on the host:
  • SCTP (Stream Control Transmission Protocol)
  • M2PA (MTP2 User Peer-to-Peer Adaptation)
  • M3UA (MTP3 User Adaptation)
  • SUA (Signaling Connection Control Part User Adaptation)
• ISDN User Part (ISUP) and Telephony User Part (TUP) signaling protocols