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Visitor Location Register (VLR)

A VLR, or Visitor Location Register, is a server that exists within cellular networks. Its purpose is to support roaming functionality when cellular networks are utilized outside of their home location register (HLR). This server ensures that a cellular device is able to maintain its full range of capabilities when it is roaming.

What Small and Midsize Businesses Need to Know About Visitor Location Register (VLR)

Although most SMBs aren’t aware of it, they may already rely on the use of a VLR when using devices to conduct business. For example, if a business call is made from a cellular device while out of town, it may be conducted using the VLR server.

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