ISDN Digital Subscriber Line (IDSL)
Definition - What does ISDN Digital Subscriber Line (IDSL) mean?
ISDN Digital Subscriber Line (IDSL) is a technology that provides DSL over an ISDN line. IDSL transmits data at a rate of 144 kbps and was originally developed by Ascend Communications, which was acquired by the company that is now Alcatel-Lucent.
Techopedia explains ISDN Digital Subscriber Line (IDSL)
IDSL is basically a cross between xDSL and ISDN. Transfer rates are slightly higher than ISDN (144 kbps vs 128 kbps), but much slower than standard DSL connections. In addition, a major benefit of switching to IDSL from ISDN is the always-on connection.
- Digital Subscriber Line (DSL)
- Integrated Services Digital Network (ISDN)
- Asymmetric Digital Subscriber Line (ADSL)
- Symmetric Digital Subscriber Line (SDSL)
- Very-High-Bitrate Digital Subscriber Line (VDSL)
- Private Access DSL (PADSL)
- Digital Subscriber Line Access Multiplexer (DSLAM)
- Wide Area Network (WAN)
- Public Switched Telephone Network (PSTN)
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