The PA2+ provides an interface function between a phone system and an audio system. It automatically answers incoming calls and connects the phone line to an audio line-out port. An integrated hang-up detector ends to audio connection when the announcement call is completed. Tones are generated by the unit to signal call connection and also for programming mode indication. The line-in port may be connected to an analog (PSTN), PBX or IP based PBX port connection. The package comes with a RJ11 line cord, power adaptor and user guide.