Compaq Presario 6500 Compaq Presario Desktop Products Warranty and Support Gui - Page 12

UK Compliance Information This modem is approved by the Secretary of State at the Department of Trade and Industry for connection to a single exchange line of the public switch telephone network run by certain licensed public telecommunication operators or systems connected thereto. (Direct exchange lines only, not shared service or 1-1 carrier systems.) This modem is also suitable for connection to Private Automatic Branch Exchanges (PABXs) which return secondary proceed indication. If this modem is to be used with a PBX which returns secondary proceed indication, no more than two pauses of four seconds duration each should be inserted between the initial PSTN access digit and the number to be dialed. This is to avoid interference to the PTO network. If this modem is to be used with a PBX which has extension wiring owned by BT, connection of the modem to the PBX can only be carried out by BT; or, by the authorised maintainer of the PBX unless the authorised maintainer has been given 14 days written notice that the connection is to be made by another person, and that period of notice has expired. This modem is suitable for use only on telephone lines provided with Loop-Disconnect or Multi-Frequency Dialing facilities. Users of this modem are advised that the approval is for connection to the PSTN via the telephone line interface supplied with it. Connection of a modem to the PSTN by any other means will invalidate the approval. There is no guarantee of correct working in all circumstances. Any difficulties should be referred to your supplier. Some network operators require that intended users of their network request permission to connect and for the installation of an appropriate socket. Ringer Equivalence Number The ringer equivalence number (REN) of this modem is 1. REN is a guide to the maximum number of apparatuses that can be simultaneously connected to one telephone line. The REN value of each apparatus is added together, and should not exceed 4. Unless otherwise marked, a telephone can be assumed to have a REN value of 1. Approved Usage This modem is approved only for the following: ■ Storage of telephone numbers for retrieval by a predetermined code ■ Detection of initial proceed indication ■ Automatic calling/Automatic answering ■ Tone detection ■ Operation in the absence as a secondary proceed indication ■ Loudspeaker facility