ATech Machine LIBRA-02 M Informations techniques télécharger pdf (Page 458)

Here is a simple example to get us started:

[LocalSets]

exten => 104,1,Answer()

; *** This line should not have any line breaks

same => n,JabberSend(asterisk,[email protected],Incoming call from

${CALLERID(all)})

same => n,Dial(SIP/0000FFFF0002,30)

same => n,Hangup()

This example demonstrates how to use the JabberSend() application to send a message

to someone prior to dialing a device. Let’s break down the values we’ve used. The first

argument, asterisk, is the section header we defined in the jabber.conf file as

[asterisk]. In our jabber.conf example, we set up a user called asterisk@shif-

teight.org to send messages via the Google XMPP server, and asterisk is the section

name we defined. The second argument, [email protected], is the buddy we’re send-

ing the message to. We can define any buddy here, either as a bare JID (as we’ve done

above) or as a full JID with a resource (e.g., [email protected]/laptop). The third ar-

gument to JabberSend() is the message we want to send to the buddy. In this case we’re

sending Incoming call from ${CALLERID(all)}, with the CALLERID() dialplan function

being used to enter the caller ID information in the message.

Obviously, we would have to further build out our dialplan to make this useful: spe-

cifically, we’d have to associate the buddy name (e.g., [email protected]) with the

device we’re calling (SIP/0000FFFF0002) so that we’re sending the message to the correct

buddy. You can save these associations in any one of several locations, such as the in

AstDB, in a relational database retrieved with func_odbc, or even in a global variable.

Receiving messages with JABBER_RECEIVE()

The JABBER_RECEIVE() dialplan function allows us to receive responses via XMPP mes-

sages, capture those responses, and presumably act on them. We would typically use

the JABBER_RECEIVE() function in conjunction with the JabberSend() dialplan applica-

tion, as we are likely to need to send a message to someone and prompt him with the

acceptable values he can return. We could use the JABBER_RECEIVE() function either

personally, to direct calls to a particular device such as a cell phone or desk phone, or

as a text version of an auto attendant to be used when people who are likely to have

difficulty hearing the prompts dial in (e.g., users who are deaf or work at noisy job

sites). In the latter case, the system would have to be preconfigured to know where to

send the messages to, perhaps based on the caller ID of the person calling.

Here is a simple example that sends a message to someone, waits for a response, and

then routes the call based on the response:

exten => 106,1,Answer()

; All text must be on a single line.

422 | Chapter 18: External Services

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