Alpha PM900 No-Phone-Bill Control Cabinet

No-Phone-Bill Control Cabinet Used with Tel-Entry Series 'No-Phone-Bill Sysem'-1 Required Per System. Requires 1- T1640. The Alpha Communications® PM900 Unit is designed to provide 'no phone line capability' when interfaced TE903NP, TE904NP or DPH100W (concierge/guard) master/phone stations.

• Can be either rotary touch-tone service
• No monthly rental fee
• Provides intercom (from lobby) for tenants that do not have outside telephone service
• Distinctive double ring differentiates between visitor calls and incoming calls
• Connection guard/concierge phone
• Multiple entrance capability
• Only two wires interface lobby equipment
• Call waiting feature
• DOC FCC approved