Digital Trunk Unit (DTU) service board is a VoIP trunk voice module designed for carriers and call centers. It is a converged media service board that can connect traditional telephone system with IP network and realize the seamless connection between VoIP PBX and ISDN. The user-friendly interface and simple operation make it easy for users to set up a personalized gateway. Users can achieve secondary development of gateway functions through AMI (Asterisk Management Interface). 'L' means no hardware codec module V100, using software codec. DTU digital trunk voice gateway provides 1/2/4 T1/E1 interfaces, supporting up to 30/60/120 concurrent calls.
Main Feature
•Providing 1/2/4 optional T1/E1/PRI interfaces
•Support up to 30/60/120 concurrent calls
•Support most VoIP system platforms, such as Asterisk, Elastix, 3CX, FreeSWITCH ,Broadsoft, etc
Application
•Traditional PBX upgrade to VoIP service
•Traditional PBX connect to remote sites for private VoIP contact
•TLS/SRTP/HTTPS security technology for call and account security
•Configurable E1/T1 port, Support with PRI, SS7, MFC/R2
•IPPBX connect to legacy TDM services
•Phased transition from traditional PBX to IPPBX
•Virtualized system connect to TDM service
•Support multiple voice codes: G.722, G.729, G.723, GSM, G.711,
•With advanced echo cancellation technology to ensure high-definition sound quality
•Support T.30, T.38 fax
•Support multi-language voice prompt
•SNMP v1/v2/v3
Panel Appearance
The DTU panel appearance is shown in Figure 1.
Figure 1 DTU Panel Appearance
Parent topic: Module Board