Asterisk VoIP Telephone Systems

Asterisk as a switch (PBX)
Asterisk can be configured as the core of an IP or hybrid PBX, switching calls, managing routes, enabling features, and connecting callers with the outside world over IP, analog (POTS), and digital (T1/E1) connections.
Asterisk 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's architecture is designed for maximum flexibility and supports Voice over IP in many protocols, and can interoperate with almost all standards-based telephony equipment using relatively inexpensive hardware.
Asterisk as a feature/media serverNeed an IVR? Asterisk’s got you covered. How about a conference bridge? Yep. It’s in there. What about an automated attendant? Asterisk does that too. How about a replacement for your aging legacy voicemail system? Can do. Unified messaging? No problem.
Asterisk in the call centerAsterisk has been adopted by call centers around the world based on its flexibility. Call center and contact center developers have built complete ACD systems based on Asterisk. Asterisk has also added new life to existing call center solutions by adding remote IP agent capabilities, advanced skills-based routing, predictive and bulk dialing, and more.
FeaturesAsterisk-based telephony solutions offer a rich and flexible feature set. Asterisk® offers both classical PBX functionality and advanced features which interoperates with traditional standards-based telephony systems and Voice over IP systems. Some of it's many features:
- Automated Attendant
- Blacklists
- Call Detail Records
- Call Forwarding
- Call Monitoring
- Call Parking
- Call Queuing
- Call Recording
- Caller ID Blocking
- Caller ID on Call Waiting
- Music On Hold
- Overhead Paging
- Remote Call Pickup
- Remote Office Support
- Roaming Extensions
- Route by Caller ID
- Three-way Calling
- VoIP Gateways
- Voicemail:
- Visual Indicator for Message Waiting
- Stutter Dialtone for Message Waiting
- Voicemail to email
- Voicemail Groups
- Web Voicemail Interface
