Task 4 Configure all Cisco IP Phones so that they communicate with each other using a four-digit (4) extension. The CODEC to be used between sites is G729

VoIP Case Study Analog Phone POE Switch FXS Port Serial Port Ethernet Port IP Phone IP Phone FXO Port IP Phone IP Phone POE Switch Serial Port FXO Port ADTRAN POTS Simulator Analog Phone on FXS port PSTN (Adtran or Similar Unit) FXS Port | Ethernet Port Analog Phone In Packet Tracer, configure two (2) CME (Call Manager Express or Unity Express) routers that allow connectivity between Cisco IP Phones to an analog phone connected to the Adtran (or similar unit) and to an analog phone connected to the Foreign Exchange Station (FXS) port. Complete the following tasks and submit the report