Asterisk Blog - Page 29

Example ; ; MGCP Configuration for Asterisk ; [general] port = 2427 bindaddr = 0.0.0.0 [dlinkgw] ; on my setup I put the mac address here which is set as the word with which to authenticate host =…

IPTables This is an example on how to configure a Linux IPTables firewall for Asterisk: # SIP on UDP port 5060. Other SIP servers may need TCP port 5060 as well iptables -A INPUT -p udp -m udp…

Asterisk Directory Command Synopsis Provide directory of voicemail extensions Syntax Directory(vm-context[|dial-context[|options]]) – 1.4 Directory(vm-context[,dial-context[,options]]) – 1.6 Presents the user with a directory of extensions from which they may select by name. The list of names and extensions is…

Synopsis Says a number (e.g. “one thousand, two hundred and eighty eight”). Description SayNumber(number, gender) Says number, in the language choosen (defaults to English). Copes only with integers between 0 and 99,999,999. Gender is one of “f” female…

Indicate ringing tone Description Ringing() Request that the channel indicate ringing tone to the user. On an unanswered SIP channel this will send a “180 Ringing” to the endpoint. Example On an answered channel Ringing returns immediately and…

These are modules you can load or unload in the Asterisk config modules.conf configuration file. In addition to these modules, most applications are also modules you can load or unload. chan_agent.so: Used for the ACD see Asterisk Agents….

To automatically restart Asterisk you can add something like this to cron Restart Asterisk PBX once a day to prevent any problems from piling up 10 7 * * * root /usr/sbin/asterisk -rx “restart now” >/dev/null 2>&1 or…

Synopsis Says a string of letters, numbers, and/or selected other characters. Syntax SayAlpha(string) Description Says each character in the string, one by one, in the language chosen (defaults to English). This command is available only in CVS >…

The Zap Channel Module provides an interface layer between Asterisk on the one side, and the Zaptel interface drivers on the other side. These drivers, in turn, provide the ability to use interface cards to connect your PBX…

Open source project – Asterisk TAPI driver for Win32. Adds functionality to any TAPI compliant application for click to dial and screen popping on inbound calls. Outlook can perform click to dial natively but has no inbuilt support…

Natively supported VOIP protocols: SIP, Session initiation protocol IAX, IAX2 – Inter Asterisk Exchange protocol (open-source trunking protocol primarily used by Asterisk) MGCP: Media gateway control protocol, IETF – see Megaco OpenH323) There are third-party addons that greatly…

An Asterisk deadlock has occured when the following criteria are met: You cannot place new calls or accept new calls through Asterisk Existing calls can continue as long as you like, until you kill -9 the asterisk process…

CDR-Stats! CDR-Stats has been renamed from Asterisk-Stat to reflect the fact that it can be developed to be telephony engine agnostic, and development is currently underway to support Freeswitch. Other telephony engines may be added as demand dictates….