... R2, V5.2;·Protocol support: SIP, H.323, RTP/RTCP;·Codecs: G.711, G.711, G.723, G.729, G.726, G.726, G.728, ... echo cancellation;Main feature· Support SS7,ISDN PRI,V5.2 Signaling· Flexible route management, inter-office management, ... InterfaceStandardThe Type of Connector PCME1,T1,G.703BNCEthernet port10/100Base-T,IEEE 802.3RJ45ConsoleRS232RJ45Board leading lineDB36ItemSpecificationInput voltage-48V DC ...