Multi-Site VoIP Phone System for UK Businesses

A multi-site VoIP phone system is a cloud-hosted telephony platform that connects multiple business locations — head office, branches, remote workers — under a single unified phone system. All sites share a common extension directory, call routing rules, and management platform, with internal calls between sites carried free of charge over your internet connections.

Yes. Call transfer between sites is a standard feature of multi-site VoIP systems. A receptionist at your Sheffield head office can transfer a call to a specific extension at your Leeds branch, or to a shared sales queue that includes staff at both locations, using the same transfer process as an internal call.

Yes. Each site requires a reliable internet connection for VoIP to function. AMVIA designs the connectivity architecture for each site based on the number of users and expected concurrent calls. Sites with high call volumes benefit from a [dedicated leased line](/leased-lines/); smaller sites can use quality business broadband with QoS configuration.

Yes. AMVIA manages the number porting process — transferring your existing DDI numbers (office numbers, department numbers) to the new VoIP platform. Number porting typically takes 5–15 working days and is managed without interruption to your existing telephony.

Remote workers connect to the VoIP platform from their home internet connection via a VoIP softphone app (on their laptop, desktop, or mobile) or a VoIP handset. They appear in the extension directory and call queue alongside office-based staff. From a caller's perspective, there is no difference — calls ring to all agents regardless of location.

Remote workers connect to the VoIP platform from their home internet connection via a VoIP softphone app (on their laptop, desktop, or mobile) or a VoIP handset. They appear in the extension directory and call queue alongside office-based staff. From a caller's perspective, there is no difference — calls ring to all agents regardless of location.