32 FXS voip gateway, DAG2000-32S Supports G.711,G723.1, ... registration and call control. DAG 2000(32FXS)access gateway can realize flow media conversion between the IP and ... PSTN.Large port access gateway Standard SIP protocols Standard G.723.1,G. ... ETSI,BT,NTT, and, DTMF-based CIDPolarity ReversalYesHomologationSafetyULComplianceFCC,CE 32 FXS VoIP Gateway Support Fax Over IP