An Open Source IP-Telephony
By
*astTECS
THE TRUE IPPBX
ISO 9001:2008 COMPANY
In association with
&
TRADELINKS PVT LTD
PSTN
pair of copper
wires
manual routing at local exchange office
public switched telephone network
PSTN Topology
Switching
Trunks
Switching
Office
Office
City A
City B
Electronics Private Branch Exchange
EA PBX system
1 – Extension to Extension
2 – Extension to PSTN
Limitations of EPBX system
• Limited no. of extensions
• Complex wiring system
• Less flexibility for user
• No expanding facility
• No facility when user is offline
• Difficult to maintain
IP-Networking
WiFi
VoIP
VoIP
• VoIP stands for Voice over Internet Protocol
– It provides a means of transmitting voice
communication over an IP based network
– VoIP can use a variety of types of VoIP, by far the
most common types
Asterisk
IP PBX
 IP PBX can enable each and every employee/person in
an organization to be provided with a voice extension
 Easier to manage the routine operations because of
web/GUI based configuration interface
 It eliminates phone wiring
 Telephone Bill savings
IP PBX
IP PABX is a hosted PBX solution, which uses internet as the
backbone and uses IP protocols to deliver crystal clear digital
voice quality.
No extra hardware, software or extra wiring
Only VoIP Server, IP Phone sets are required
Existing Ethernet wiring can be used as telephone wiring.
IP PBX Architecture
Features of VoIP-PBX
Multiple Extension Number Management
Voice Mail
Voice Call Recording
Call Forwarding
Call Waiting
Call Hold
Flexibility
The same PBX can be easily accessible in multiple
locations with as many as 1000 extensions depending
upon the system configuration
The
entire
company/organization can
use
same
Ethernet cabling / WiFi for calling
Supports
multiple
service
types
relationships from a single control point.
and
partner
The IPPBX system example
•
•
•
•
•
Intel Pentium 3.0 GHz CPU
1 GB RAM
350 GB Hard Drive
LAN
Keyboard /Mouse
• VoIP phones:
A VoIP phone looks like an ordinary corded
telephone, but it connects directly to a
computer network
The WiFi Mobile
• WiFi Phone
– Android based wifi mobile
– Can use SIM card for personal calling as
well as wifi for internal organization calling
Software
SoftPhones
convert
any multimedia PC into the
functional equivalent of a
telephone, allowing users to
make calls over any internet
connection
Android app C-SipSimple
Linux
Based
Operating
System
Asterisk IPPBX package
Features
-Extensions as per Server
-Call Monitoring
Configuration
-Call Queuing
--Blacklists
-Call Recording
-Call Transfer
-Call Waiting
-Call Detail Records
-Caller ID
-Call Forward on Busy
-Caller ID on Call Waiting
-Call Forward on No Answer
-Dial by Name
-Call Forward Variable
-Music On Hold
•Voicemail:
- Visual Indicator for Message Waiting
- Stutter Dialtone for Message Waiting
- Voicemail to email
- Web Voicemail Interface
Benefits
• Easy to manage using web
• Android wifi mobile extensions
• Voicemail facility if user is offline
• Call waiting service
• Audio & Video conferencing
• Low maintenance cost
• Extensions can be created or deleted easily
• No need of extra wiring
• Much easier to install & configure than a proprietary
phone system
Any Questions
Thank You