Grandstream UCM6510 User Manual - Manual (Page 236)

Firmware Version 1.0.2.5 UCM6510 IP PBX User Manual Page 235 of 313
CALLBACK FEATURE
Callback is mainly designed for users who often use their mobile phones to make long distance or
international calls which may have high service charges. The callback feature provides an economic
solution for reduce the cost from this.
The callback feature works as follows:
1. Configure a new callback on the UCM6510.
2. On the UCM6510, configure destination of the inbound route for analog trunk to callback.
3. Save and apply the settings.
4. The user calls the PSTN number of the UCM6510 using the mobile phone, which goes to callback
destination as specified in the inbound route.
5. Once the user hears the ringback tone from the mobile phone, hang up the call on the mobile phone.
6. The UCM6510 will call back the user.
7. The user answers the call.
8. The call will be sent to DISA or IVR which directs the user to dial the destination number.
9. The user will be connected to the destination number.
In this way, the calls are placed and connected through trunks on the UCM6510 instead of to the mobile
phone directly. Therefore, the user will not be charged on mobile phone services for long distance or
international calls.
To configure callback on the UCM6510, go to web GUI->PBX->Call Features->Callback page and click
on . Configuration parameters are listed in the following table.
Table 79: Callback Configuration Parameters
Name Configure a name to identify the Callback.
CallerID Pattern
Configure the pattern of the callers allowed to use this callback. The caller
who places the inbound call needs to have the callerID match this pattern
so that the caller can get callback after hanging up the call.
Note:
If leaving as blank, all numbers are allowed to use this callback.
Outbound Prepend
Configure the prepend digits to be added at before dialing the outside
number. The number with prepended digits will be used to match the
outbound route. ‘-’ is the connection character which will be ignored.