What is Asterisk?
Asterisk is an intelligent communications software based on open source technolgies, wherein voice, data an video converge, commonly used alongside Linux.
It takes over the traditional functions contained in the commercial PBX’s like Avaya, Nortel and CISCO, alongside with latest and new tecnology.
It’s also a platform that allows for interoperability with POTS and VoIP(Voice over IP).
It allows to translate and use diverse protocols for VoIP such as SIP, MGCP and H.323.
It’s able as well to connect to the national telephony system, affording you the latest VoIP technology with great savings to your company.
Comparing different Telephony PBX’s:
| Functions | Asterisk | Avaya IP Office | Nortel BCM |
| Voice Mail | Unlimited Inboxes | 30 Inboxes | 30 Inboxes |
| Tri-Party Call | Yes | Yes | Yes |
| Conference Rooms | Yes | No | No |
| On-Hold calls | Yes | Yes | Yes |
| Call Transfers | Yes | Yes | Yes |
| Direct Inward Dial (DID) | Yes | Yes | Yes |
| IVR (Interactive Voice Rensponse) | Yes | Optional W/Added Cost | Optional W/Added Cost |
| ACD (Automatic Call Distribuitor) | Unlimited Agents | Includes 10 agents | Includes 10 agents |
| Database integration | Yes | Optional W/Added Cost | Optional W/Added Cost |
| Call Recording | Yes | Optional W/Added Cost | Optional W/Added Cost |
| Password protection | Yes | Yes | Yes |
| Default Message and Personalized Messages | Yes | Yes | Yes |
| E-Mail notification of voicemail | Yes | Yes | Yes |
| Visual Indication of voicemail | Yes | Yes | Yes |
| Interoperability with other VoIP Equipment from various providers | Yes | No | No |
| International Calls by VoIP | Yes | No | No |
Source: Synetcom
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