2
1

Delete article

Deleted articles cannot be recovered.

Draft of this article would be also deleted.

Are you sure you want to delete this article?

More than 3 years have passed since last update.

IP電話になって、音声品質の評価基準が大きく変化したかもしれない。

音声通話の利便性よりも、料金に見合う通話を考えるきっかけを記録。

音声品質評価法 NTT
http://www.ntt.co.jp/qos/technology/sound/index.html

IP 電話の通話品質評価法 一般社団法人 情報通信技術委員会
http://www.ttc.or.jp/jp/document_list/pdf/j/STD/JJ-201.01v9.pdf

IP電話の通話品質の話
http://www.hitachi-systems-ns.co.jp/column/11.html

IP 電話の音声品質評価と品質制御に関する検討
https://ci.nii.ac.jp/els/contentscinii_20181214161526.pdf

IP電話通話品質評価法の標準化動向
https://www.oki.com/jp/Home/JIS/Books/KENKAI/n202/pdf/202_R28.pdf

IP電話サービス(23種類)の料金と音質を比較する
http://blog.jikoman.jp/2015/11/ip-denwa-hikaku.html

文書履歴(document history)

ver. 0.01 初稿 20181214
ver. 0.04 URL追記 20230302

最後までおよみいただきありがとうございました。

いいね 💚、フォローをお願いします。

Thank you very much for reading to the last sentence.

Please press the like icon 💚 and follow me for your happy life.

2
1
0

Register as a new user and use Qiita more conveniently

  1. You get articles that match your needs
  2. You can efficiently read back useful information
  3. You can use dark theme
What you can do with signing up
2
1

Delete article

Deleted articles cannot be recovered.

Draft of this article would be also deleted.

Are you sure you want to delete this article?