System users can call a Callback extension from a phone connected to the public network and, through it, place an outgoing call using the VoipNow platform.
To set up a Callback extension, first you need to define its general settings. Then you may customize it using specific options. You may do this at any time later on by clicking the Callback setup icon available in the extension's management page.
Set up the way you need the Callback extension to behave.
Define the security options of the Callback extension setup.
These are the CallerID related options.
|CallerID name in public calls|
The options described below allow you to customize the CallerID name that will be displayed on the callee's screen when the extension is calling public destinations.
|CallerID number in public calls||The options described below allow you to customize the CallerID number that will be displayed on the callee's screen when the extension is calling public destinations.|
|Currently Using CallerID Numbers||Allows you to choose one or several CallerID numbers that will be sent when an outgoing call is initiated.|
The numbers available are the ones defined for the channel(s) (resource) used for routing the calls to public destinations.
Please note that a CallerID can be set as default even if it has not been assigned to the extension's DID pool.
To associate a CallerID with the extension, you need to select the corresponding checkbox and click the Assign CallerIDs link. To disassociate a CallerID, you need to select the corresponding checkbox and click the Remove selected link.
Do not send CallerID on public calls
Applies if you do not want your CallerID to be sent to public destinations. If the callee's phone terminal supports the CallerID function, it will display the Anonymous string.
Send SIP P-Asserted-Identity and P-Preferred-Identity headers
Allows the headers to be added to all outgoing INVITE requests sent from this extension.
The SIP P-Asserted-Identity header contains the caller ID number of the extension, e.g. P-Asserted-Identity:sip:email@example.com.
The P-Preferred-Identity header is sometimes used to indicate an additional identity of preference when there is a choice.
These headers are preserved only on outgoing external calls, e.g. P-Preferred-Identity: "John White" <sip:firstname.lastname@example.org>.