Complete Communications Engineering

VOCAL includes all the standard features expected of an ATA, plus innovative premium features demanded by your customers. With the patent-pending VOCAL VoATA control software, an end user can manage up to four VoIP service providers with a single ATA. User access may be automatic on a per-number basis, or can be as simple as using a standard long distance prefix such as “1010825…”. Contact us to discuss your application design requirements.

ATA Design Features
Phone User Services: Telephony: Call Progress Tones: LED Display Patterns:
Place/Cancel Outgoing Calls CLASS Features Programmable Tone Generation Patterns Tri-Color LEDs (Red, Orange, Green)
Answer Incoming Calls Call Waiting Enable/Disable Four Tones, Four On/Off Time Pairs Programmable LED Patterns
Full Duplex Audio Caller ID Display Enable/Disable
  • Initial Dial Tone
Four On/Off Time Pairs
Flexible Dial Plan Support Call Waiting Caller ID Enable/Disable
  • Secondary Dial Tone
Configurable Display Priority
Fax Tone Detection (Pass Through) Blocked Call List for a Specified Number
  • Stuttered Dial Tone
  • Use and Waiting
ITU T.38 Fax Support Distinctive Ring for a Specified Number
  • Message Wait Dial Tone
  • Ringing or Waiting
PSTN Line Support (Dial and Backup) Block/Unblock Caller ID
  • Call Forward Dial Tone
  • PSTN in Use
PSTN Emergency 911/999 Block/Unblock Caller ID for One Call
  • Pre-Ringback Dial Tone
  • Use and Hold
Call-in Profiles: Accept Priority Call of a Specified Number
  • Ring Back Tone
  • Line in Use
IPBX (Internet Private Branch Exchange) Busy Number Redial
  • Call Waiting Tone
  • Call Holding
IHT (Internet Home Termination) Call Return (Call the Last Caller)
  • Call Holding Tone
  • Do Not Disturb
SIOT (Small Internet Office Termination) Deactivate/Activate Call Waiting for Current Call
  • Call Disconnect Tone
  • Call Forwarding
Voice Features: Call Forwarding
  • Call Conference
  • Message Waiting
Voice Activity Detection (VAD)
  • Forward Priority Call of a Specified Number
  • Busy Tone
Voice-over-IP (VoIP) Protocols:
Silence Suppression (DTX)
  • Forward on Busy
  • Reorder Tone (Network/Fast Busy)
Power-on Auto Registration
Comfort Noise Generation (CNG)
  • Forward on No Answer
  • Off Hook Warning Tone (Howler Tone)
Re-Registration with SIP Proxy Server
Packet Loss Concealment (PLC)
  • Forward All Calls
  • SIT Tones 1 to 4
SIP over UDP
Dynamic Jitter Buffer (Adaptive) Speed Dial (8 + 20 Numbers)
  • Prompt Tone
SIP Authentication (HHP Digest with MD5)
Audio Codec Preferences Block Anonymous Calls
  • Confirm Tone
Quality of Service:
Dynamic Payload Negotiation Do Not Disturb
  • Input Error Tone
Port Priority for VoIP Packets from Application
Codec Name Assignment Call Transfer
  • Number Error Tone
High and Low Priority Transmit Queues for Interface
Adjustable Audio Frames per Packet 3-way Conference Calling with Local Mixing Ringing Patterns: NAT/Firewall Support:
Redial Programmable Ring Patterns Built-in Router
Call Hold Four On/Off Time Pairs Automated NAT Transversal without Manual Manipulation of Firewall/NAT
Call Waiting/Flash
  • Default Ring
NAT Traversal for Private Networks with STUN
Flash Hook Timer
  • Hold Re-ring
NAT Firewall
Delay Disconnect
  • Call Back Ring
Gateway and DMZ Port Forwarding
Hot Line and Warm Line Calling
  • Call Back Ring Splash
LAN Pass Through
Call Blocking with Toll Restriction
  • Call Forward Ring Splash
Point-to-Point Protocol over Ethernet (PPPoE)
Caller ID Generation (Name & Number) – Bellcore, DTMF, ETSI
  • Message Waiting Ring Splash
Call Waiting Caller ID with Name/Number
  • 8 Distinctive Ring Patterns
Distinctive Ringing Distinctive Call Waiting: Password Protected Web Based Administration
Distinctive Call Waiting Programmable Tone Generation RC4 Encryption for TFTP Configuration Profiles
MWI – Message Waiting Indicator Tone and Visual Four Tones, Four On/Off Time Pairs Authentication (DIGEST using MD5)
VMWI Via FSK 8 Distinctive Call Waiting Patterns Remote Configuration/Maintenance
Polarity Control 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