Compaq Armada 7300 Armada 7300 Family of Personal Computers Reference Guide - Page 162

t Automatic dialing t Tone detection of busy tone, dial tone, or number unobtainable tone t Auto clear from the call origination end t Loop disconnect (pulse) dialing t Multifrequency (tone) dialing Any other usage will invalidate the approval of the apparatus if, as a result, it ceases to conform to the standards against which approval was granted. All apparatus connected to this modem and, thereby, connected directly or indirectly to the British Telecom Public Switched Telephone Network, must be approved apparatus as defined in Section 16 of the British Telecommunications Act of 1981. Although this equipment can use either loop disconnect or DTMF signaling, only the performance of the DTMF signaling is subject to regulatory requirements for correct operation. It is therefore strongly recommended that the equipment be set to use DTMF signaling for access to public or private emergency services. DTMF signaling also provides faster call setup. CAUTION: The series 577 global modem may not be used on extension wiring that makes use of plug pins 1 & 6. If in doubt, advice must be obtained from a competent telecommunications engineer. Difficulties may occasionally be experienced from other apparatus connected to the BT PSTN via the Compaq series 577 global modem apparatus. Such difficulties may include the following: s Difficulty in making calls s Problems in telephone conversion being experienced by both parties to the call CAUTION: Initially, normal operation will be possible. However, changes to or modernization of the network may result in the apparatus being connected to a network service with which it was not designed to be compatible. Failure of the apparatus to work under these circumstances may not be the responsibility of the network operator. Regulatory Notices B-13