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Phone Integration

Asterisk Phone Integration and OpenPro

OpenPro is the leader in web-based ERP software using open source LAMP technology.

Asterisk is a complete IP PBX telecommunication system for UNIX and Linux systems that integrates with OpenPro business solutions.

Asterisk is a complete IP PBX in software. It runs on a wide variety of operating systems including Linux, Mac OS X, OpenBSD, FreeBSD and Sun Solaris, and provides all of the features you would expect from a PBX, including many advanced features that are often associated with high end (and high cost) proprietary PBXs. Asterisk supports Voice over IP in many protocols and can interoperate with almost all standards-based telephony equipment using relatively inexpensive hardware.

Asterisk is released as open source under the GNU General Public License (GPL), meaning that it is available for download free of charge. Asterisk is the most popular open source software available, with the Asterisk Community being the top influencer in VoIP.

Asterisk was created by Mark Spencer of Digium, Inc in 1999. Code has been contributed from open source coders around the world, and testing and bug-patches from the community have provided invaluable aid to the development of this software.

Trixbox and other Asterisk-based telephony solutions offer a rich and flexible feature set. Asterisk offers both classical PBX functionality and advanced features, and interoperates with traditional standards-based telephony systems and Voice over IP systems. Asterisk offers the advanced features that are often associated with large, high end (and high cost) proprietary PBXs.

We have interface with Trixbox freePBX and OpenPro, so screens pop up letting the operator know who is calling in.

OpenPro can integrate with a phone system using world class open source Asterisk PBX software. When a customer or vendor calls, Asterisk can ask for caller ID and pop up the information before you answer the phone. It will also log all the calls so that they can be recorded and added to the contact database. There is also an option available where the customer can input his or her contact ID to get verified by the system before the call goes through. OpenPro is the first to give you a complete package like this.

All the information is available on your desktop; within OpenPro, you can verify who is calling in.

With easy to use menus, you can configure the phone system the way you like.

See the Asterisk glossary for a list of important terms.

Call features

ADSI On-Screen Menu System

Alarm Receiver

Append Message


Automated Attendant


Blind Transfer

Call Detail Records

Call Forward on Busy

Call Forward on No Answer

Call Forward Variable

Call Monitoring

Call Parking

Call Queuing

Call Recording

Call Retrieval

Call Routing (DID & ANI)

Call Snooping

Call Transfer

Call Waiting

Caller ID

Caller ID Blocking

Caller ID on Call Waiting

Calling Cards

Conference Bridging

Database Store / Retrieve

Database Integration

Dial by Name

Direct Inward System Access

Distinctive Ring

Distributed Universal Number Discovery (DUNDi)

Do Not Disturb



Fax Transmit and Receive (3rd Party OSS Package)

Flexible Extension Logic

Interactive Directory Listing

Interactive Voice Response (IVR)

Local and Remote Call Agents


Music On Hold

Music On Transfer:

  • Flexible Mp3-based System
  • Random or Linear Play
  • Volume Control

Call features

Predictive Dialer


Open Settlement Protocol (OSP)

Overhead Paging

Protocol Conversion

Remote Call Pickup

Remote Office Support

Roaming Extensions

Route by Caller ID

SMS Messaging

Spell / Say

Streaming Media Access

Supervised Transfer

Talk Detection

Text-to-Speech (via Festival)

Three-way Calling

Time and Date



VoIP Gateways


  • Visual Indicator for Message Waiting
  • Stutter Dialtone for Message Waiting
  • Voicemail to email
  • Voicemail Groups
  • Web Voicemail Interface

Computer-Telephony Integration

AGI (Asterisk Gateway Interface)

Graphical Call Manager

Outbound Call Spooling

Predictive Dialer

TCP/IP Management Interface


TDMoE (Time Division Multiplex over Ethernet)

Allows direct connection of Asterisk PBX

Zero latency

Uses commodity Ethernet hardware

Voice-over IP

Allows for integration of physically separate installations

Uses commonly deployed data connections

Allows a unified dialplan across multiple offices



G.711 (A-Law & μ-Law)


G.723.1 (pass through)


G.729 (through purchase of a commercial license)







IAX™ (Inter-Asterisk Exchange)


SIP (Session Initiation Protocol)

MGCP (Media Gateway Control Protocol

SCCP (Cisco® Skinny®)

Traditional Telephony Interoperability


E&M Wink

Feature Group D







MF and DTMF support

Robbed-bit Signaling (RBS) Types

MFC-R2 (Not supported. However, a patch is available)

PRI Protocols


BRI (ISDN4Linux)



Lucent 5E

National ISDN2



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