CHAPTER 7. Connecting Stations and Additional Equipment7-4 © Samsung Business CommunicationsMaximum number of DS-5012L / LE phones connectableUp to eight DS-5012L / LE phones can be connected to each DLI module. If morethan eight are connected, the power to all digital phones is blocked automatically.Up to 24 DS-5012L / LE phones can be connected to the basic chassis or the ex-pansion chassis.7.1.4 Connecting IP PhonesIP phones provide calls through the Ethernet LAN. A digital phone connected to the Of-ficeServ 7400 system and an IP phone connected to the LAN communicate as follows:1) The connection a digital phone and an IP phone is established or released using the IPaddress of the LAN connected to the OfficeServ 7400 system.2) The digital phone converts analogue voice data to PCM voice data and transmits thedata to the MGI module through the DLI or 8COMBO module.3) PCM voice data is converted to packet data by the MGI/MGI64 module and trans-ferred to the IP phone.4) The IP phone converts packet voice data to analogue voice signals and plays the sig-nals through a phone receiver or a speaker.5) Voice signals from the IP phone are converted to packet data and transmitted to theMGI module.6) The MGI/MGI64 module converts the packet voice data to PCM voice data and trans-mits the data to the digital phone through the DLI or 8COMBO module.7) The digital phone converts the PCM voice data to analogue data.