3Com VCX V7111 VoIP SIP Gateways User Manual 9A BOUT THIS GUIDEThis User’s Guide describes the following 3Com ® VCX™ V7111 Gateways: The 24-port VCX V7111 24FXS The eight-port VCX V7111 8FXS and 8FXO The four-port VCX V7111 4FXS and 4FXO The two-port VCX V7111 2FXSThese products are supported by software version 4.2, and enable you to send voice fax anddata over the same IP network.Information contained in this document is believed to be accurate and reliable at the time ofprinting. However, because of on-going product improvements and revisions, 3Com cannotguarantee the accuracy of printed material after the Date Published nor can it acceptresponsibility for errors or omissions. Updates to this document and other documents can beviewed by registered Technical Support customers. See “Appendix E: Obtaining Support forYour 3Com Products” in the User’s Guide for details on how to register your product and getsupport from 3Com.FCC Notice to UsersThis equipment has been tested and found to comply with the limits for a Class B digitaldevice, pursuant to part 15 of the FCC Rules. These limits are designed to providereasonable protection against harmful interference in a residential installation. Thisequipment generates, uses and can radiate radio frequency energy and, if not installed andused in accordance with the instructions, may cause harmful interference to radiocommunications. However there is no guarantee that interference will not occur in aparticular installation. If this equipment does cause harmful interference to radio or televisionreception, which can be determined by turning the equipment off and on, the user isencouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiveris connected. Consult the dealer or an experienced radio/TV technician for help.CAUTION: Installation and service of 3Com VCX V7111 products must beperformed only by authorized, qualified service personnel.