We provide Asterisk Support in all over INDIA • Installation / maintenance / configuration • Inbound/outbound/predictive dialing solution for small and large call centers • Vicidial Install, Vicidial Support, Vicidial Configuration and Customization • Go Autodial Install, Go Autodial Support, Go Autodial Configuration and Customization • PRI Line Configure & Support • PRI Card Configure … Read more
We often require to do string manipulation on a variable. For example, a variable named phonenumber which represents a number we’d like to call, and we want to strip off the first 5 digit before dialing the number. Asterisk provides a special syntax for doing just that, which looks like ${variable[:skip[:length]} The optional skip field tells Asterisk how many … Read more
Action: Originate Channel: SIP/2003 Context: test Exten: s Priority: 1 Variable: __SIPADDHEADER51=Call-Info: <sip:192.168.0.19>\;answer-after=0 Callerid: MyTestCall Timeout: 15000 ActionID: 200 Where 192.168.0.19 is the IP of Asterisk Server
ChannelRedirect : This is used to redirect the given channel to target dialplan. For example if you want to redirect the channel SIP/1222-09992 to wrap context at 2 priority. You can use this function/command to do so. This has been added in Asterisk 1.4 version. For Asterisk 1.4 version ChannelRedirect(channel|[[context|]extension|]priority) For Asterisk 1.8 and above … Read more
Here is an example to select multiple column of a table from select statement in asterisk. exten => h,1,MYSQL(Connect conn localhost username password database) exten => h,n,MYSQL(Query res ${conn} ‘SELECT call_id,callerid,calltime FROM todaycall WHERE calltime=curdate() order by calltime desc limit 1′) exten => h,n,MYSQL(Fetch fid ${r} call_id callerid calltime) exten => h,n,MYSQL(Clear ${r}) exten => … Read more
What is Asterisk? Asterisk is an open source framework for building communications applications. Asterisk turns an ordinary computer into a communications server. Asterisk powers IP PBX systems, VoIP gateways, conference servers and other custom solutions. It is used by small businesses, large businesses, call centers, carriers and government agencies, worldwide. Asterisk is free and open … Read more
Definition: iptables is a user-space application program that allows a system administrator to configure the tables provided by the Linux kernel firewall (implemented as different Netfilter modules) and the chains and rules it stores. Iptables is a firewall, installed by default. Before we can really get to grips with iptables, we need to have at least … Read more
Dial() is perhaps the most important application in Asterisk. Dial() accepts every valid channel type (e.g. SIP, IAX2, H.323, MGCP, Local, Zap, Dahdi), The allowable parameters are channel-specific; i.e., what parameters a channel requires or will accept depends on the nature of the channel technology. For example, a SIP channel will require an IP address and user information, whereas a … Read more
In Asterisk, a macro is a special kind of context which can be expanded within the definition of another context. Its name must begin with “macro-”. A macro is expanded by using the Macro command. All the lines of the macro definition should only use the s extension; the actual extension will come from the line in the calling context on which the macro is expanded. … Read more
Asterisk can make use of global, shared and channel-specific variables for arguments to commands. Variables are referenced in the dialplan (extensions.conf) using the syntax ${foo:offset:length} where foo is the name of the variable, offset is an optional field indicating which characters should be excluded, and length is an optional field indicating the number of characters from the offset to be returned. … Read more