Historically we have allowed verified Caller IDs to be used on our native telephony platform even if the Caller ID does not belong to us. This is always supported on a best endeavours basis, as some receiving carriers will reject calls if they come from a Caller ID not owned by the sending carrier.

An upstream change made by a Carrier overnight has now blocked this behaviour in the majority of cases. As this service was only provided for emergency failover rather than primary use, it shouldn't have affected any clients. However, some clients have been relying on this behaviour either due to misconfiguration or forgetting to revert changes back after an incident.

It is important moving forward that calls are only routed over QContact's telephony service if the number has been purchased from QContact or ported to QContact. We offer a free porting service for your numbers if you wish to continue using QContact's telephony.