Avaya Definity TN464D Universal DS1/ISDN Circuit Pack (Refurbished)Avaya Definity TN464D Universal DS1 ISDN Circuit Pack. More Information Supports DS1 Rate (24 Digital Channels) and E1 Rate (32 Digital Channels) All versions support CO, TIE, DID and OPS (Off Premises Stations) port types using the robbed signal protocol, proprietary bit oriented signaling, (BOS) 24th channel signaling protocol, and the DMI BOS 24th channel signaling protocol
Shopping security
Each payment you make on thelockerguy is secured with strict SSL encryption and PCI DSS data protection protocols