ISDN Stocks List

Recent Signals

Date Stock Signal Type
2021-04-15 ADTN Stochastic Sell Signal Bearish
2021-04-15 CTBB NR7 Range Contraction
2021-04-15 CTBB Cup with Handle Other
2021-04-15 CTBB MACD Bearish Centerline Cross Bearish
2021-04-15 CTDD MACD Bullish Centerline Cross Bullish
2021-04-15 CTDD MACD Bullish Signal Line Cross Bullish
2021-04-15 CTDD Bollinger Band Squeeze Range Contraction
2021-04-15 CTDD Crossed Above 50 DMA Bullish
2021-04-15 CTDD Crossed Above 20 DMA Bullish
2021-04-15 LUMN NR7 Range Contraction
2021-04-15 LUMN Narrow Range Bar Range Contraction
2021-04-15 STM Cup with Handle Other
2021-04-15 TEF 180 Bearish Setup Bearish Swing Setup
2021-04-15 UTSI Fell Below 20 DMA Bearish
2021-04-15 UTSI Fell Below 200 DMA Bearish
2021-04-15 UTSI Calm After Storm Range Contraction

Recent News for ISDN Stocks

Date Stock Title
Apr 15 LUMN Lumen names chief security officer
Apr 15 ADTN ADTRAN, Inc. to Release First Quarter 2021 Earnings on May 5, 2021
Apr 15 TEF Telecom Stock Roundup: COMM to Spin Off, VZ's 5G Tests in Self Driving & More
Apr 15 LUMN Lumen welcomes Jason Lish as chief security officer
Apr 15 LUMN EOS, Stellar’s Lumen, and Tron’s TRX – Daily Analysis – April 15th, 2021
Apr 14 TEF ATP Tower Holdings, LLC -- Moody's assigns first-time Ba3 rating to ATP and its senior secured notes, outlook is stable
Apr 14 LUMN Is LUMN Stock A Buy or Sell?
Apr 14 UTSI RIOT, MVIS, MSRT and FOLD among premarket gainers
Apr 14 TEF Virgin Media and O2 $43.2 billion merger cleared by competition watchdog
Apr 14 UTSI 22 Stocks Moving in Wednesday's Pre-Market Session
Apr 14 TEF UPDATE 2-O2 and Virgin Media win provisional UK approval for 31 bln pound merger
Apr 14 TEF Britain's competition watchdog green lights O2 and Virgin Media tie-up
Apr 14 LUMN EOS, Stellar’s Lumen, and Tron’s TRX – Daily Analysis – April 14th, 2021
Apr 13 LUMN Lumen Technologies Sets First Quarter 2021 Earnings Call Date
Apr 13 LUMN EOS, Stellar’s Lumen, and Tron’s TRX – Daily Analysis – April 13th, 2021
Apr 12 TEF Telefonica (TEF) Arm to Spur Cloud Service With Quantum Technology
Apr 12 ADTN ADTRAN’s SDX Series Portfolio Receives Top Marks from Lightwave Innovation Reviews
Apr 12 LUMN EOS, Stellar’s Lumen, and Tron’s TRX – Daily Analysis – April 12th, 2021
Apr 11 LUMN 3 High-Yield Dividend Tech Stocks to Buy in April
Apr 9 LUMN Dividend stocks are out of favor, but here are 19 that Wall Street loves

Integrated Services Digital Network (ISDN) is a set of communication standards for simultaneous digital transmission of voice, video, data, and other network services over the traditional circuits of the public switched telephone network. It was first defined in 1988 in the CCITT red book. Prior to ISDN, the telephone system was viewed as a way to transport voice, with some special services available for data. The key feature of ISDN is that it integrates speech and data on the same lines, adding features that were not available in the classic telephone system. The ISDN standards define several kinds of access interfaces, such as Basic Rate Interface (BRI), Primary Rate Interface (PRI), Narrowband ISDN (N-ISDN), and Broadband ISDN (B-ISDN).
ISDN is a circuit-switched telephone network system, which also provides access to packet switched networks, designed to allow digital transmission of voice and data over ordinary telephone copper wires, resulting in potentially better voice quality than an analog phone can provide. It offers circuit-switched connections (for either voice or data), and packet-switched connections (for data), in increments of 64 kilobit/s. In some countries, ISDN found major market application for Internet access, in which ISDN typically provides a maximum of 128 kbit/s bandwidth in both upstream and downstream directions. Channel bonding can achieve a greater data rate; typically the ISDN B-channels of three or four BRIs (six to eight 64 kbit/s channels) are bonded.
ISDN is employed as the network, data-link and physical layers in the context of the OSI model. In common use, ISDN is often limited to usage to Q.931 and related protocols, which are a set of signaling protocols establishing and breaking circuit-switched connections, and for advanced calling features for the user. They were introduced in 1986.In a videoconference, ISDN provides simultaneous voice, video, and text transmission between individual desktop videoconferencing systems and group (room) videoconferencing systems.

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