Private Branch Exchange (PBX)

Description:
PBX
Indosoft Inc. offers all-in-one phone systems based on the versatile Asterisk PBX. It integrates standard telephones, cellular and offsite phones with the traditional telecom network and the Internet for VoIP (Voice over IP). It takes advantage of the synergy of telecommunications and information technology to integrate the two into a single environment that can be customized to server any application or collection of applications.

The Asterisk PBX
Asterisk leverages the power of Linux and the most cost-effective telephony solution for complete business communications solution. It also provides the functionality of a media server, a protocol gateway, and a conference bridge. Here is a detailed list of what Asterisk can do for you.

Call Features
ADSI On-Screen Menu System
Alarm Receiver
Append Message
Authentication
Automated Attendant
Blacklists
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
E911
ENUM
Fax Transmit and Receive (3rd Party OSS Package)
Flexible Extension Logic
Interactive Directory Listing
Interactive Voice Response (IVR)
Local and Remote Call Agents
Macros
Music On Hold
Music On Transfer
Flexible Mp3-based System
Random or Linear Play
Volume Control
Predictive Dialer
Privacy
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
Transcoding
Trunking
VoIP Gateways
Voicemail
Visual Indicator for Message Waiting
Stutter Dialtone for Message Waiting
Voicemail to email
Voicemail Groups
Web Voicemail Interface
Zapateller
Computer-Telephony Integration
AGI (Asterisk Gateway Interface)
Graphical Call Manager
Outbound Call Spooling
Predictive Dialer
TCP/IP Management Interface
Scalability
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
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®)
Traditional Telephony Interoperability
E&M
E&M Wink
Feature Group D
FXS
FXO
GR-303
Loopstart
Groundstart
Kewlstart
MF and DTMF support
Robbed-bit Signaling (RBS) Types
ISDN Protocols
4ESS
BRI (ISDN4Linux)
DMS100
EuroISDN
Lucent 5E
National ISDN2
NFAS