Calls heard through paging

[Jases Brown]

Have a very strange issue where the customer claims that some calls are being heard over their paging system. Attached is the call in question and the calls before and after. My original thought was what if the paging system (ext 500) was used while this call was in place, could that have caused an issue? However, as you see, that did not happen here.
Have any of you seen such a thing? The paging device is a Cyberdata paging adapter. The phones are Yealink T29s with the latest firmware.

 

[JohnS_3CX]

In theory this can happen if I make a conference call and include the paging system in it.

You should start by looking at your call and activity logs and see if you can find anything in there.

 

[QueBall]

Do not make a blf button type for the paging extension or it is too easy to transfer call to page. Make it a custom speed dial button type instead so transferring the call is less likely.

You can make paging extension impossible to dial by extension on ivr menu by modifying the parameters for IVR_DIRECT_DIALING_GRAMMAR (not allowed to edit these on a hosted instance)
eg ((?!555|630)[0-9]{3})
This is a regular expression formatted field.
Prevents 555 or 630 in that example.

If a caller is reaching the paging from IVR then one suggestion is to make this extension a very different extension number from your standard extensions. Eg if standard extensions are 200,201,202 etc make paging extension 555. if you cannot edit parameters for dialing grammar.

Also set security to prevent that extension from doing external calls.

I suspect the case is either an ivr dial by extension or accidential call transfer to page extension instead of putting them on hold or park first. Again a blf that does blind transfer by default is dangerous for page extension.