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* the '''call.preroute''' message that tries to classify the caller in a context * the '''call.route''' message that tries to map a called number to a string describing the target channel

:*user.auth: bool: Activate handler on the "user.auth" message. Defaults to no :*user.register: bool: Activate handler on the "user.register" message. Defaults to no

; handlers priority ...modules then you have to pay attention to the priorities of the call.route message handler for each module.

...setup '''ulimit -n 8096'''. This will setup the number of open files (file handlers) Yate is allowed to use. ; Methods indicated in chan.dtmf message will be intersected with channel capabilities

'''call.preroute''' is a message sent by a module requesting additional information required to route an inc ...reject) the call if the message is processed and the returned value of the message is set to "error" or "-".

...iguration changes) or because of a local account update (an [[user.login]] message). Since the message should be observed by multiple modules all handlers ''must'' return false.

=== Message handlers === ... will set the type, format and callsource parameters of the [[call.route]] message. The 'type' parameter will have the value 'record', the 'format' parameter

===Message handlers===

===Message handlers===

== Message handlers == ...ge sent from ysipchan module and used to generate a [[resource.subscribe]] message

...an instance of the voicemail.php script is launched and the "call.execute" message is passed to it (even if it didn't install a handler) so it can pick up use The application then keeps running, installing message handlers, generating messages and keeping the event loop running.<br>

The following parameters are interpreted in the [[call.cdr]] message: In the call.route message:

===CNAM Message parameters=== ===LNP Message parameters===

To mantain the LNP cache the module implements two [[call.route]] message handlers.<br> Check for '''querylnp=true''' in handled message.

===Message handlers=== Park any call to 2000 to a newly created parking orbit playing message.gsm

==Message handlers== The channels are taken from 'id' and 'targetid' parameters of the message.

; priority: int: Default priority of message handlers, 0 to disable them ; Handler priorities for each message, override priority from [general]

: - Query for the initial routing message: '''queryroute''' ; This section holds default settings for each of the following message handlers

Sniffer on will dump the message and his parameters, each on a separated line. * you can also add extra filters on message params

* install handlers for messages it wants to process == What handlers to install ==

...module stops until answer is received. Enqueue is done asynchronously. The message is set in a queue and the execution thread continues without waiting for a ...s that allow a certain module to receive the message. Each module installs handlers for all the messages it needs to receive.

... you write your own scripts to handle events, send messages or set message handlers in Yate using [[External Module|external module]]. * Setting message handlers

The list holding the installed message handlers is protected against changes by this mutex while it's being iterated. Usual

Components of messages and how messages are processed by messages handlers. * [[Message Flows]]

...echanism for organizing YATE's messages in different queues, identified by message name and some specified filters. In JavaScript a MessageQueue can be created by calling Message.installHook() method.

In register.conf file you have to activate handlers for each message you are going to use. That means that you have to enable parameters: :- user.auth=yes -> Activate handler on the [[user.auth]] message. Used to authenticate users.

'''Keyword: %%>message'''<br/> %%>message:<id>:<time>:<name>:<retvalue>[:<key>=<value>...]<br/>

; This section holds default settings for each of the following message handlers ; priority: int: Priority in Yate's handlers chain

==See installed message handlers== You can use even use '''eval''' to see installed handlers for a script. This help a lot to debug scripts especially when you include

* you can use Channel object from function called on message handlers ...ort a second parameter: object with parameters to be added to call.execute message

Yate Message object * '''new Message(name)'''

...o generate a message faking a response when a request fails to be sent (in message handler or subsequent failure).<br> Message parameters:

**SEP1 is our master SCCP message processor The message flow scenario:

...ify the remote party. The flag will be reset when the circuit (un)blocking message will be confirmed. ===Message handlers===