# Recommendation V.25 (11/1988): Automatic answering equipment and/or parallel automatic calling equipment on the general switched telephone network including procedures for disabling of echo control devices...

> superseded recommendation/international standard from the International Telecommunication Union

**Wikidata**: [Q26928850](https://www.wikidata.org/wiki/Q26928850)  
**Source**: https://4ort.xyz/entity/recommendation-v-25-11-1988-automatic-answering-equipment-and-or-parallel-automatic-calling-equipment-on-the-general-switched-telephone-network-including-procedures-for-disabling-of-echo-control-devices-