Asterisk tips and tricks

How to start with Asterisk:

• Asterisk rollout tips: Advice on how to deploy an Asterisk production system
• Asterisk installation tips
• Getting Gnophone to work

SIP connectivity: sip.conf

• See: Asterisk Configurations for connecting with VOIP providers
• Letting SIP clients connect directly without media through asterisk
• SIP second nic

ISDN BRI and modems

• modem.conf: The configuration file
• Asterisk: How to connect with ISDN4Linux
• Asterisk: How to connect with CAPI
• zaptelBRI: 4 port ISDN hardware

Dial plan solutions

• Program Calls in the future with Asterisk: Using small code in the Dialplan and callfiles
• Answer before sending sound: Don't forget to answer the line
• Superdial macro: This macro makes it MUCH easier to try to dial multiple extensions in a sequence you define
• Stdexten macro: Used by pretty much everyone to define local extensions easily
• Pstnexten macro: Allows you to define and dial a specific pstn connection (useful for troubleshooting systems)
• hunt-dial macro: define a hunting group for outbound calls.
• Asterisk tips 911: How to configure 911 calls
• Asterisk setup research lab: Includes advice on echo cancellation
• Asterisk record calls: How to monitor calls made in your server
• Asterisk record remote conference: How to record a remote conference (i.e. Astricon)
• Asterisk calling card AGI application sample
• Asterisk tips DID: How to configure your PRI or BRI direct inward dial (DID) lines (MSN:s)
• Asterisk call forwarding: How to configure call forwarding (*21*) in the dial plan
• Asterisk last number repeat: How to configure quick redial in the dial plan
• Asterisk tips SIP URI Dial: Allow dialing a SIP address like: user@domain.com using SRV Lookup. (incoming and outgoing)
• Asterisk E164 Call Routing: How to store call routing information in the DNS with the ENUM standard instead of extensions.conf
• Asterisk ENUM dialing Do ENUM lookup and dialing on your Asterisk@Home server
• Asterisk DUNDi Call Routing: How to use the DUNDi peering network. (Available as of CVS 10/18/2004)
• Asterisk Jabber: How to receive notifcations by Jabber of Incoming calls
• Asterisk Telemarketer Torture: An example of really awful, frustrating menu design.
• Asterisk WhoIsIt: Announce incoming caller over the computer speakers.
• Asterisk tips autoattendant: How to turn an Auto-attendant extension on and off
• Asterisk tips IVR menu: How to create voice/DTMF menus
• Asterisk tips callback: How to create voicemail callback solutions
• Asterisk tips wake-up: User can schedule a wake-up call
• Asterisk tips Airport Weather PHP Prompt for Airport code and get the airport weather
• Asterisk tips Wake-Up Call PHP: PHP version of a wake-up call, uses standard R 1.0 prompts
• Asterisk tips Weather PHP PHP version of Pearl Weather script
• Asterisk tips Wake-Up Call PHP with Snooze/Annoy: Same as above but uses an AGI to set snooze / cancel the wake-up
• Asterisk tips simple wake-up call: Simple (no cron, no prompts) wake-up call in perl/AGI very similar to the main Swedish telco
• Asterisk tips openhours: Including contexts based on date and/or time of day
• Asterisk tips openclose.agi: Using an AGI script to have control on events within your dialplan
• Asterisk tips C Version of openclose.agi: AGI Program that control events within dialplan
• Asterisk tips phrase recording menu: A simple IVR menu to record and review sound files (phrases)
• Voicemail status based on IM status: How to use AGI to check whether user is available or not.
• Asterisk Voicemail Dialplan: How to setup voicemail in your dialplan
• Asterisk tips Automatic Call Back on Busy/Campon, Reverse HoldIf you are on hold - put them on hold as well! :-)
• Asterisk Tips follow me: Have your number follow you from phone to phone (aka. Portable Directory Numbers)
• Asterisk tips campon: Camp on an extension (mini-queue)
• Asterisk tips forking: Forking in the dialplan
• Asterisk tips findme: Dial multiple phone numbers simultaneously, connecting to the first one to confirm acceptance of the call
• Asterisk tips fileexistance: Branching based on the existance of file(s)
• Asterisk tips call last caller: A quick way to connect to the last caller
• Asterisk audio-wiki: A simple Audio-wiki
• Asterisk tips Music Player Daemon as Music on Hold: Using MPD as music-on-hold through icecast ,ogg123 and sox
• Asterisk tips call through: A simple call through example
• Asterisk tips renumber extens: A perl script to renumber extensions.conf rules
• Asterisk tips MythTV integration: An example to integrate Asterisk with MythTV's on-screen caller ID display
• Asterisk tips voicemail live: Answering machine mimic: Listen while caller is leaving voicemail for you; with pick-up option
• Asterisk tips simple voicemail live: An answering machine mimic without pickup option.
• Agents without agent channel: Burn chan_agent and do it in the dialplan!
• Asterisk authenticate using voicemail passwords: A way to use the voicemail password to authenticate users on various situations
• Asterisk presence: How to setup Asterisk presence support
• Asterisk SIP Messaging or IM as supported by eyeBeam and some other phones
• Asterisk DO-NOT-CALL list generator A way for telemarketers to collect Do Not Call requests from people they pester
• Asterisk Dynamic conferences macro Macro implementation of dynamic MeetMe conferences as alternative for conference call mixing on a phone
• Asterisk Blacklist function Do you hate unsolicited calls? Here's how to add a easy-to-use Blacklist system on your Asterisk server
• BLF notify on Grandstream GXP-2000 Get extension status on your quickdial LEDs on your Grandstream GXP-2000 phone.
• Authenticate Users by Caller ID or PIN - password: no external database required
• Asterisk Hunting Groups for incoming calls: Hunting groups for incoming calls
• Asterisk tips Wake-Up Call Perl: Perl version of a wake-up call, one script, multiple calls, no daemon
• Asterisk tips Call Back: Callback if user (channel) is busy
• Asterisk Advanced Retry-Dial (Callback) funtionality: Retry call if user (channel) is busy. Call is always originated on the original caller side
• Asterisk tips Queue Member ackcall
• Asterisk Filter application Filter incomming calls with this add-on application
• Asterisk Phonebook application Access your contact list by typing a name using your phone keypad
• Asterisk Inject application Inject a sound sample on an arbitrary channel while spying on it.

Use of Asterisk's Local channel

• Use Local channel and macros to add a timer capability to Asterisk's "Music on Hold"'

Using Asterisk's Macros

• Combine Asterisk's macros and Local channel to add a timer capability to Asterisk's "Music on Hold"

Channel functions

• Asterisk tips zap transfer: Using the built-in ZAP channel call transfer function

Third party software configuration

• Asterisk festival installation: Installation guide for the Festival application (speech synthesis)
• Convert WAV audio files for use in Asterisk

Securing your Asterisk installation

• Asterisk firewall rules: Examples on how to configure a firewall for Asterisk
• Asterisk security: General thoughts on Asterisk security
• Asterisk user authentication: General thoughts on how to authenticate users

Debugging Asterisk

• Asterisk debugging: Tips on debugging deadlocks
• Asterisk cmd NoOp is useful for debugging dialplans (your extensions.conf file)
• How to debug and troubleshoot VOIP: Overview and many good pointers
• Asterisk X11: Avoiding jittery sound by disabling the X Window System (Gnome/KDE) on your Linux server
• Asterisk disable frame buffer: How to disable your VGA frame buffer on the Linux text console. The frame buffer may cause jittery sound.
• Asterisk PSTN interface debugging: Solving PSTN interface problems (Echo, Dropped calls, etc)
• Asterisk Request to schedule in the past: Tips on how to resolve these log messages.
• Asterisk cannot find sound files: A few tips and one cause

Digium Zaptel hardware

• Asterisk x100p echotraining: Handling echo cancellation on Digium x100p cards
• Asterisk TE410p No Interrupts: Rebooted your box with Digium TE410 cards and now it looks DOA
• Asterisk wcte12xp: Outgoing calls not working - playing all-circuits-busy-now freePbx 2.2.3 /trixbox 2.8.x

Various configuration tips

• Asterisk - dual servers: How to connect two Asterisk servers and make them work together
• Asterisk click to call: Link phone numbers in your browser so you can click on them to dial
• Asterisk configuration from database
• Asterisk and faxes: Faxing with Asterisk
• Configuring the console sound card
• Asterisk echo cancellation: Trying to find out why you have echo problems in Asterisk
• Asterisk echo analog lines: Some information about echo problems on analog lines (FXO/FXS)
• Asterisk CDR csv handling: How to collect CDRs from many Asterisk servers
• Asterisk CDR csv handling2: Bash script to summarize usage statistics from csv CDR records
• Asterisk embedded systems: How to setup a very small Asterisk server
• Asterisk legacy integration: How to integrate Asterisk with your old PBX
• Asterisk automatic daily restart: How to automatically restart Asterisk once a day
• Asterisk Dynamic Conferences: Tools for creating dynamic conferences that expire at a later date
• Using Slimserver for Music on Hold: How to use a local or remote slimserver for your Music on Hold
• Add Voice Recognition to Asterisk: How to integrate Asterisk with TellMe's VoiceXML studio for Voice Recognition in your IVR
• Asterisk Queue Callback: Allow your customers to hang up while holding in a queue and get called back when their turn comes
• Asterisk Queue with limited calls per IAX agent: Limit number of calls to operator with group()
• display asterisk callerID on a squeezebox/ slimp3 using a slimserver

Using the manager API

• Asterisk auto-dial out: How to make Linux applications dial out on demand
• Asterisk record calls: How to monitor and record calls in your PBX with ZAP channels
• Monitor setup sample: Another example on how to monitor calls
• Asterisk tips managing CID names: A simple web interface for managing CID names

AGI examples (contributed by imran)

• JAVA-AGI:
• Perl-ZAPINCOMMING-AGI:
• Perl-ZAPOUTGOING-AGI:
• Perl-SIPCALLOUT-AGI:
• MANAGERAPI-JAVA-AGI:
• Perl-SIP-AGI:
• Perl-ZAPSIPIAX_INCOMMING_OUTGOING-AGI:
• Perl-recmsg-AGI;

More AGI scripts

• Perl-EMAIL-AGI:
• Perl-AustralianWeather:

Utility Scripts

• Perl Add/Modify/Delete user script
• Xmail filter to Voicemail script - Written in sh with embedded python and awk.