32 FXS voip gateway, DAG2000-32S Supports G.711,G723.1,G.729 A/B Support 1 wan,3 lan router T.38 or ... between the IP and PSTN.Large port access gateway Standard SIP protocols Standard G.723.1,G.729A/B,PCM A/U ... ×250×45Weight2.80kgAdditional FeaturesCaller IDBellcore Type 1 & 2, ETSI,BT,NTT, and, DTMF-based CIDPolarity ReversalYesHomologationSafetyULComplianceFCC,CE VoIP SIP Gateway With 32FXS Ports