IS-641

This article does not cite any sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "IS-641" – news · newspapers · books · scholar · JSTOR (December 2009) (Learn how and when to remove this message)

TIA/EIA standard IS-641 is a speech coding standard used in some computer and telecommunications networks in the U.S.A. The main usage was in the U.S. TDMA networks defined by IS-136. The bit rate of the speech codec is 7.4 kbit/s. This codec is the same as the 7.4 kbit/s mode in the AMR speech codec. The standard has been superseded by TIA/EIA-136-410.

This article related to telecommunications is a stub. You can help Wikipedia by expanding it.

• v
• t
• e