Features
Asterisk provides Voicemail services with Directory, Call Conferencing, Interactive Voice Response and Call Queuing. It has support for three-way calling, caller ID services, ADSI, SIP and H.323 (as both client and gateway). Check the Features section for a more complete list.
Hardware
Asterisk needs no additional hardware for Voice over IP. For interconnection with digital and analog telephony equipment, Asterisk supports a number of hardware devices, most notably all of the hardware manufactured by Asterisk's sponsors, Digium™. Digium has single and quad span T1 and E1 interfaces for interconnection to PRI lines and channel banks as well as a single port FXO card and a one to four-port modular FXS and FXO card.
Asterisk is primarily developed on GNU/Linux for x/86. It is known to compile and run on GNU/Linux for PPC along with OpenBSD, FreeBSD, and Mac OS X Jaguar. Other platforms and standards-based UNIX-like operating systems should be reasonably easy to port for anyone with the time and requisite skill to do so.
Technical Specifications of our Asterisk Communications Appliance
Features Description
Rack Mountable YES
Unit Dimensions Width: 387mm x Depth: 365mm x Height: 66mm
Unit Construction Steel, aluminium and polycarbonate
Heat sink Aluminium with twin heat pipe cooling system
Colour Options Matt Black, Metallic Black, Metallic Silver or custom (OEM)
Front Panel Laser etched, blue glow - with Power button, HDD LED, infrared RX, and covered optical drive
Rear Panel Motherboard connections - 2x PCI slots and DC in
Weight 8.2 KG (gross)
Power Supply External AC/DC converter and internal switcher.
Motherboard VIA EPIA - M1000
PCI Expansion 2x (175mm) PCI cards
Hard Drive 1x 80GB
Working Environment Max 36° Celsius air temperature
Memory 256MB
Power Supply 80W
Capacity
ISDN Lines 4
Users up t30 (recommended), upgradeable
Outgoing Sip Lines 5-25
Other Features
ADSI On-Screen Menu System
Automated Attendant
Call Detail Records
Call Forwarding
Call Monitoring
Call Parking
Call Queuing
Call Recording
Call Retrieval
Call Routing (DDI & ANI)
Caller ID
Dial by Name
Direct Inward System Access
Distinctive Ring
DNot 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
Flexible Mp3-based System
Random or Linear Play
Volume Control
Predictive Dialer
VoIP Gateways
Voicemail
Visual Indicator for Message Waiting
Stutter Dial tone for Message Waiting
Voicemail temail
Voicemail Groups
Web Voicemail Interface
Computer-Telephony Integration
Scalability
TDMoE (Time Division Multiplex over Ethernet)
Allows direct connection of Asterisk PBX
Zerlatency
Uses commodity Ethernet hardware
Voice-over IP
Allows for integration of physically separate installations
Uses commonly deployed data connections
Allows a unified dial plan across multiple offices
Codecs
ADPCM
G.711 (A-Law & µ-Law)
G.723.1 (pass through)
G.726
G.729 (through purchase of commercial license through Digium)
GSM
iLBC
Linear
LPC-10
Speex
Protocols
IAX™ (Inter-Asterisk Exchange)
H.323
SIP (Session Initiation Protocol)
MGCP (Media Gateway Control Protocol
SCCP (Cisco® Skinny®)