Complete Communications Engineering

VOCAL’s VPBX Home Gateway System includes all the standard features expected of an ATA, plus innovative premium features demanded by end-users for Voice over IP PBX, blended with all the benefits of HPNA in one complete home gateway system.

Home Gateway
WAN support – 10/100 Ethernet
WAN support – cable modem or DSL
WAN support – DSL PPPoE auto-dial and disconnect
DHCP client for WAN connectivity
Dynamic DNS and wildcard DNS
WLAN support – 802.11b/g
Integration with VoIP Processing
NAT/Firewall Support
Built-in Router
Automated NAT Traversal Without Manual Manipulation of Firewall/NAT
NAT Traversal for Private Networks with STUN
NAT Firewall
Common NAT ALG support, including FTP, IRC, and instant messenger
IP Sharing for up to 250 local users
DHCP server for local users
NAT port triggering
NAT firewall pinholes
VPN PPTP/IPSec passthrough
VPN support
QoS for traffic prioritization
Web configuration
NAT Firewall
Phone User Services
SIPv2 client
Place/Cancel Outgoing Calls
Answer Incoming Calls
Full Duplex Audio
Flexible Dial Plan Support
Fax Tone Detection (Pass Through)
ITU T.38 Fax Support
TTY / TDD support
PSTN Line Support (Dial and Backup)
PSTN Emergency 911/999
Voice Features
Voice Activity Detection (VAD)
Silence Suppression (DTX)
Comfort Noise Generation (CNG)
Packet Loss Concealment (PLC)
Dynamic Jitter Buffer (Adaptive)
Audio Codec Preferences
Dynamic Payload Negotiation
Codec Name Assignment
Adjustable Audio Frames per Packet
Local Loop (FXS Port)
Fallback to local line in the event of power failure
Use local line for local numbers
Use local line for priority numbers (911, police, etc)
Receive calls on local line
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
Call Conferencing
Speed Dial (8 + 20 Numbers)
Block Anonymous Calls
Do Not Disturb
Call Transfer
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
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 Patterns
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 Tone)
  • 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 Rering
  • 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
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
Worldwide Time Zone Support
Administration Guide
Installation Guide
Configuration Guide