技术细节
| D通道协议 |
ETSI-DSS1 (Euro-ISDN), NI-1, 1TR6, NET3, VN3/4/6, 5ESS (AT&T), 5ESS, DMS100, INS-64, Q-SIG |
| 网络经营者的支持(语音/数据) |
DTMF/MF |
| PC卡标准 |
PCI rev. 2.2 (3.3V/ 5V) |
调制解调器
| 调制解调器速度 |
56 Kbit/s |
| B通道协议 |
HDLC, PPP, MLPPP, X.75 (LAPB), X.75/V.d2bis, LAPD, T.90NL, T.70NL, X.25, X.31, PIAFS 1.0/2.0, SDLC |
Diva Server V-BRI-2 - active ISDN adapter for Basic Rate Interface (BRI)
The Diva V-BRI is a high-performance, PC-based telephony board that provides rich media processing capabilities for two voice channels over an ISDN base rate interface. It is an excellent choice for enterprises looking for small size voice, speech, and conferencing boards that also allow for easy expansion.
Powerful Digital Signal Processors (DSP) - one dedicated to each communication channel - ensures real-time voice processing reducing latency and improving overall system performance. Thus the Diva V-BRI enables both legacy and IP-based computer telephony (CTI) solutions, as well as leading edge voice business applications, such as voice portals and speech-enabled contact centers.
World-Class Voice Processing
Diva Server V-BRI adapters provide a full set of voice processing fu net ions including tone detection and generation, voice activity detection and echo cancellation. Handling voice either in F'STN standard co-ding or in compressed coding allows adaptation to any kind of telephony system. Onboard DSPs perform these complex operations in real-time enhancing overall system performance and lowering implementation cost.
Facilitates Speech-Enabled
Thanks to supporting full-duplex voice channels, callers can use an application-friendly feature known Applications as "Barge-In". This allows a caller to interrupt speech prompts by speaking over them thereby controlling the pace of the conversation for a more pleasant user experience and better platform utilization. Enhanced echo cancellation and voice activity detection improve recognition accuracy and make better use of host platform resources.
Enhanced Switching and Conferencing Support
Diva Server V-BRI adapters support line interconnection and conferencing of calls on a single board as well as across boards within a server. Automatic gain control (AGC) is provided to automatically adjust the signal level of incoming calls for recording at normal levels.
Robust Voice Over IP (VoIP) Technology
For integrating established voice, speech and conferencing applications with emerging IP-Telephony clients and IP-Phones, Diva Server V-BRI provides key enabling features such as voice packetization into real-time transport protocol (RTP), voice compression (G.726 and GSM), adaptive jitter buffer and comfort noise generation.
Supports Best-of-Breed Applications
The support of standardized software interfaces such as CAPI 2.0 or TAPI as well as an open API (Diva Server SDK) facilitate the development of voice business applications. Common applications include voice portals, speech enabled interactive voice response (IVR) systems and media servers.
Superior Scalability and Flexibility
Up to eight Diva Server adapters - offering 2 to 480 channels - can he installed and operated concurrently in a single server. Any type of Diva Server adapter whether for Analog, ISDN BRI, ISDN PRI, E1/T1 or VoIP lines can be mixed and matched.
Easy to Install
Diva Server V-BRI adapters conform to Intel and Microsoft Plug and Play standards, eliminating the need to manually configure the server.
