Keep analog endpoints in service without delaying your IP voice roadmap. Cisco VG400 Analog Voice Gateway is designed for organizations that still depend on fax machines, analog phones, or paging systems but need to connect them to a SIP-based communications platform. It gives IT teams a practical migration path: maintain critical legacy devices, reduce forklift replacements, and phase in VoIP on your schedule. With 8 FXS ports, this model is suited to branch offices and distributed sites that need a focused analog-to-IP bridge rather than a full telephony refresh. The compact footprint makes it easier to place in telecom closets, small racks, or edge locations where space is limited and uptime matters. Cisco’s voice gateway heritage also matters here: this is the kind of device you deploy when call continuity, predictable behavior, and long service life are worth more than a lower-cost box with fewer controls. For procurement teams, the value is clear. You are buying time, compatibility, and operational stability while protecting existing analog investments. For infrastructure teams, you get a gateway that fits into a disciplined migration plan and keeps essential endpoints reachable during the transition.