The Mediant™ 1000 supports up to 4 digital trunks (fully flexible, from a single trunk per module all the way to a single module with all 4 trunks) or as a purely analog configuration, supporting up to 24 analog ports (6 modules with 4 ports on each). The digital module can have up to 4 regular E1/T1 Span interfaces, or can have 1 or 2 paired spans acting as life-line interfaces for switching to the PSTN in case of power failure or network problems. The analog Module can consist of FXS or FXO interfaces, where one FXS can be used as a life-line interface for switching to the PSTN. This gateway provides a full suite of codecs, standard compliant control protocols and PSTN signaling interfaces for of media gateway applications in most environments. It allows ISPs and System Integrators broad application support and a quick time-to-market solution. The Mediant™ 1000's SIP, MGCP, Megaco/H.248 and H.323 call control make the gateway suitable for integration into almost any current or future application.