ASTERISK - Open Source PBS

Asterisk - OpenSource PBX Ameya Pandit

What is pbx? Private Branch Exchange: An exchange system used in companies and organizations to handle internal and external calls.

What IS VOIP ? Network Transmission types Signaling : TCP e.g. h323:1720, SIP:5060  RTP (RealTime Transport Protocol): UDP 

What is Asterisk and why Asterisk ? Freedom of OpenSource No Legacy System Very Customizable More features than EPBX

What Asterisk Can Do for you? Interactive Voice Response  Call Forward – Waiting etc  Authentication  Conference Bridging  Fax Transmit and Receive  Call Detail Record 

Installing Asterisk a. Obtain SourceCode b. Extracting the Source Code c. The Zapata Telephony Drivers d. Compiling libpri e. Compiling Asterisk

Directories Used by Asterisk /etc/asterisk/  /usr/lib/asterisk/modules/  /var/lib/asterisk  /var/spool/asterisk/  /var/run/  /var/log/asterisk/ 

Dialplan Configuration [incoming] exten => s,1,Answer( ) exten => s,2,Echo( ) Whatever you say, the Echo( ) application will relay back to you.

Session Initiation Protocol Application Layer Signalling Protocol  Use port 5060  RTP to Trasnport Media  Communication between 2 endpoints  not the first, and is not the only 

Asterisk VoIP: User Agents Clients Soft Phones Software Windows Based: X-Lite & X-Pro from X-Ten networks  Firefly from FreshTel networks.  SJPhone from SJ labs.  Linux Based: KPhone, a SIP phone for the KDE  environment. More SIP User Agents  http://www.voip-info.org

X-Lite client

Asterisk VoIP: User Agents Clients : Hardware Phones Cisco: Cisco 7960,7940 and ATA186 SIP SNOM GrandStream

Cisco Phone at Magnet

Connecting to the Console To start the Asterisk process # /usr/sbin/asterisk Enabling Verbosity and Debugging # core set verbose 10 # core set debug 10

Asterisk In Magnet Customized Dialplan  Call Detail Recording  Authentication  Call routing  VoiceMail sent as Attachment  Fax Email Gateway 

Thank you. Ameya Pandit Magnet Technologies Pvt Ltd. ameya.pandit@magnettechnologies.com Contact : +91 22 6719 2000

ASTERISK - Open Source PBS

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