Service Provider Fixed-Mobile Convergence (SPFMC) is similar to the Cellular Service Provider (CSP) application, but for service providers that support dual mode phones. SPFMC is always enabled and can handle anonymous SIP calls by blocking the caller’s identity. SPFMC ignores the EC500 state of a station.

An SPFMC application can be associated with a PVFMC application to support a dual-mode cell phone. You can define the application to be part of a dual-mode pair. There may be two sets of dual-mode pairs. A Dual Mode field on the station mapping screen indicates which application is part of a dual-mode pair. Dual Mode field can have three values: dm1, dm2, or blank. If Dual Mode field is blank then application is not part of a dual-mode pair. Only FMC applications can have a non blank value in the Dual Mode field. The values of dm1 and dm2 indicate if the application belongs to a dual-mode pair. There can be two sets of dual-mode pairs (two dual mode phones) mapped to a desk set.