A hosted PBX system delivers PBX functionality as a service, available over the  Internet. Hosted PBXs are typically provided by Advanced Communications & Maintenance. This means you will no longer need to buy or install PBX equipment in your facility.

In addition to the features available from premises-based PBX systems, hosted-PBX:

• Allows a single number to be presented for the entire company, despite its being geographically distributed. A company could even choose to have no premises, with workers connected from home using their domestic telephones but receiving the same features as any PBX user.
• Allows multimodal access, where employees access the network via a variety of telecommunications systems, including POTS, ISDN, cellular phones, and VOIP. This allows one extension to ring in multiple locations (either concurrently or sequentially).
• Supports integration with custom toll plans (that allow intra company calls, even from private premises, to be dialed at a cheaper rate) and integrated billing and accounting (where calls made on a private line but on the company's behalf are billed centrally to the company).
• Eliminates the need for companies to manage or pay for on-site hardware maintenance.