SP-980 : SIP IP-PBX A SIP Gateway, Server, Client and Trunk Specification * Intel IXP420BD/IXP425BD at 533 MHz * 16MB Flash * 64MB SDRAM * Two USB 2.0 ports. One connects to external port and the otehr port is installed inthe inside of the box for a hard disk * 4 * LAN ports and 1 * WAN port * 2 * FXO ports and 2 * FXS ports * On board DSP chip AC49008 * Codec support: G.723.1, G.729, G.711 (i/A-Law), G.726 ADPCM * Caller ID: Bellcore and ESTI (on hook and off hook service) * Fax support: T.38 compliant * Echo canceller: G.168-2002 compliant with programmable echo tail of up to 128ms