# Recommendation V.22 (11/1988): 1200 bits per second duplex modem standardized for use in the general switched telephone network and on point-to-point 2-wire leased telephone-type circuits

> recommendation/international standard from the International Telecommunication Union

**Wikidata**: [Q26928836](https://www.wikidata.org/wiki/Q26928836)  
**Source**: https://4ort.xyz/entity/recommendation-v-22-11-1988-1200-bits-per-second-duplex-modem-standardized-for-use-in-the-general-switched-telephone-network-and-on-point-to-point-2-wire-leased-telephone-type-circuits