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This should probably be merged with Secure voice

Yeah, that could work. — Matt Crypto 15:00, 2 September 2005 (UTC) reply

The external links section currently reads like the yellow pages. All the links are to companies offering secure telephone services, none of which asserts their notability. I feel inclined to remove the whole lot. Any comments?-- Teemuk 12:02, 20 October 2006 (UTC) reply

Yeah, most of them provide little information about the topic, although this link might be worth keeping. — Matt Crypto 12:24, 20 October 2006 (UTC) reply

This section says nothing about, how really secure telephones work. There were supposed to be some technical details. - Yyy 11:59, 6 May 2007 (UTC) reply

There are too few information regarding the various voice encryption technologies out-there. I am not speaking about products but technologies and standards as there is ZRTP, SRTP, SCIP, TETRA, A5/1, SNOW3D, ZUC and a lot more but those are not presented in a homogeneous way to let the reader understand the fragmented scenario of existing technologies. —Preceding unsigned comment added by Fpietrosanti ( talk • contribs) 07:22, 1 October 2010

No mention of the BID/ 470 Brahms the "portable" UK secure phone system of the 1980s: [1] Was used by Margaret Thatcher during the Falklands War: [2], [3]. Martinevans123 ( talk) 21:26, 25 February 2022 (UTC) reply