ATech Machine LIBRA-02 M Informações Técnicas descarregar pdf (Página 459)

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

${CALLERID(all)}. Press 1 to route to desk. Press 2 to send to voicemail.)

same => n,Set(JabberResponse=${JABBER_RECEIVE(asterisk,[email protected])})

same => n,GotoIf($["${JabberResponse}" = "1"]?dial,1)

same => n,GotoIf($["${JabberResponse}" = "2"]?voicemail,1)

same => n,Goto(dial,1)

exten => dial,1,Verbose(2,Calling our desk)

same => n,Dial(SIP/0000FFFF0002,6)

same => n,Goto(voicemail,1)

exten => voicemail,1,Verbose(2,VoiceMail)

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

same => n,Set(VoiceMailStatus=${IF($[${ISNULL(${DIALSTATUS})}

| "${DIALSTATUS}" = "BUSY"]?b:u)})

same => n,Playback(silence/1)

same => n,VoiceMail(100@lmentinc,${VoiceMailStatus})

same => n,Hangup()

Unfortunately, the JabberSend() application requires all of the message

to be sent on a single line. If you wish to break up the text onto multiple

lines, you will need to send it as multiple messages on separate lines

using JabberSend().

Our simple dialplan first sends a message to a Jabber account ([email protected]) via

our systems’ Jabber account (asterisk), as configured in jabber.conf. We then use the

JABBER_RECEIVE() dialplan function to wait for a response from [email protected]. The

default timeout is 5 seconds, but you can specify a different timeout with a third argu-

ment to JABBER_RECEIVE(). For example, to wait 10 seconds for a response, we could

have used a line like this:

Set(JabberResponse=${JABBER_RECEIVE(asterisk,[email protected],10)})

Once we’ve either received a response or the timeout has expired, we move on to the

next line of the dialplan, which starts checking the response saved to the

${JabberResponse} channel variable. If the value is 1, we continue our dialplan at dial,

1 of the current context. If the response is 2, we continue our dialplan at voicemail,1.

If no response (or an unknown response) is received, we continue the dialplan at

dial,1.

The dialplan at dial,1 and voicemail,1 should be fairly self-evident. This is a non-

production example; some additional dialplan should be implemented to make the

values dynamic.

There is a disadvantage to the way we’ve implemented the JABBER_RECEIVE() function,

though. Our function blocks, or waits, for a response from the endpoint. If we set the

response value low to minimize delay, we don’t give the user we sent the message to

Using XMPP (Jabber) with Asterisk | 423

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