Complete Communications Engineering

VOCAL’s Video PBX expands upon our robust, fully featured ATA Reference Design with the capability to send/play streaming video, videoconferencing, web browsing, email, instant messaging, media player (including mp3, videos, etc), and digital recording to provide a full set of premium IMS features. Contact us to discuss your video PBX application requirements.

Video Features
Video Conferencing
Interlaced Streaming Video
Video Surveillance
Video Capture
Phone User Services
Place/Cancel Outgoing Calls
Answer Incoming Calls
Full Duplex Audio
Flexible Dial Plan Support
Fax Tone Detection (Pass Through)
PSTN Line Support (Dial and Backup)
PSTN Emergency 911/999
Call-in Profiles
IPBX (Internet Private Branch Exchange)
IHT (Internet Home Termination)
SIHT (Simple Internet Home Termination)
SIOT (Small Internet Office Termination)
Voice Features
Adaptive Jitter Buffer
Transcoding between different codecs
Voice Activity Detection (VAD)
Silence Suppression (DTX)
Comfort Noise Generation (CNG)
Packet Loss Concealment (PLC)
Audio Codec Preferences
Dynamic Payload Negotiation
Codec Name Assignment
Adjustable Audio Frames per Packet
CLASS Features
Call Waiting Enable/Disable
Caller ID Display Enable/Disable
Call Waiting Caller ID Enable/Disable
Blocked Call List for a Specified Number
Distinctive Ring for a Specified Number
Block/Unblock Caller ID
Block/Unblock Caller ID for One Call
Accept Priority Call of a Specified Number
Busy Number Redial
Call Return (Call the Last Caller)
Deactivate/Activate Call Waiting for Current Call
Call Forwarding

  • Forward Priority Call of a Specified Number
  • Forward on Busy
  • Forward on No Answer
  • Forward all Calls
Speed Dial (8 + 20 Numbers)
Block Anonymous Calls
Do Not Disturb
Call Transfer
3-way Conference Calling with Local Mixing
Call Hold
Call Waiting/Flash
Flash Hook Timer
Delay Disconnect
Hot Line and Warm Line Calling
Call Blocking with Toll Restriction
Caller ID Generation (Name & Number)

  • Bellcore
  • DTMF
  • ETSI
Call Waiting Caller ID with Name/Number
Distinctive Ringing
Distinctive Call Waiting
MWI – Message Waiting Indicator Tone and Visual
Polarity Control
Call Progress Tones
Programmable Tone Generation
Four Tones, Four On/Off Time Pairs

  • Initial Dial Tone
  • Secondary Dial Tone
  • Stuttered Dial Tone
  • Message Wait Dial Tone
  • Call Forward Dial Tone
  • Pre-Ringback Dial Tone
  • Ring Back Tone
  • Call Waiting Tone
  • Call Holding Tone
  • Call Disconnect Tone
  • Call Conference Tone
  • Busy Tone
  • Reorder Tone (Network/Fast Busy)
  • Off Hook Warning Tone (Howler)
  • SIT Tones 1 to 4
  • Prompt Tone
  • Confirm Tone
  • Input Error Tone
  • Number Error Tone
Ringing Patterns
Programmable Ring Patterns
Four On/Off Time Pairs

  • Default Ring
  • Hold Re-ring
  • Call Back Ring
  • Call Back Ring Splash
  • Call Forward Ring Splash
  • Message Waiting Ring Splash
  • 8 Distinctive Ring Patterns
Distinctive Call Waiting
Programmable Tone Generation
Four Tones, Four On/Off Time Pairs
8 Distinctive Call Waiting Patterns
LED Display Patterns
Tri-Color LEDs (Red, Orange, Green)
Programmable LED Patterns
Four On/Off Time Pairs
Configurable Display Priority

  • Use and Waiting
  • Ringing or Waiting
  • PSTN in Use
  • Use and Hold
  • Line in Use
  • Call Holding
  • Do Not Disturb
  • Call Forward
  • Message Waiting
Voice-over-IP (VoIP) Protocols
Power-on Auto Registration
Re-registration with SIP Proxy Server
SIP over UDP
SIP Authentication (HHP Digest with MD5)
Quality of Service
Port Priority for VoIP Packets from Application
High and Low Priority Transmit Queues for Interface
NAT/Firewall Support
Built-in Router
Automated NAT Traversal Without Manual Manipulation of Firewall/NAT
NAT Traversal for Private Networks with STUN
NAT Firewall
Gateway and DMZ Port Forwarding
LAN Pass Through
Point-to-Point Protocol over Ethernet (PPPoE)
Password Protected Web-based Administration
RC4 Encryption for TFTP Configuration Profiles
Authentication (DIGEST using MD5)
Remote Configuration/Maintenance
Web Configuration via Built-in Web Server
Configuration Update via TFTP or HTTP
Firmware Upgrade via TFTP or HTTP
SYSLOG Update/Upgrade Processing Notifications
Administration Guide
Installation Guide
Configuration Guide