PSTN - Public Switched Telephone Network
6:16
YouTubeSunny Classroom
PSTN - Public Switched Telephone Network
Today my topic is Public Switched Telephone System, or PSTN. PSTN is a century-old worldwide connected telephone network. The PSTN topology and class level might be different in different countries but the original design was only for circuit switching analog telephone calls. Nowadays, the backbone of the PSTN is mostly digital, and most local ...
已浏览 13万 次2018年11月25日
Public switched telephone network History
Public Bathroom Etiquette: New Rules Explained
0:10
Public Bathroom Etiquette: New Rules Explained
TikTokzclips468
已浏览 69.1万 次2 周前
A Lesson in Physics from Neil deGrasse Tyson (WGBH Forum Network)
2:37
A Lesson in Physics from Neil deGrasse Tyson (WGBH Forum Network)
YouTubeAmerican Archive of Public
已浏览 47.6万 次3 周前
Awkward Moments That Happen in Public.
1:21
Awkward Moments That Happen in Public.
YouTubeDaniel LaBelle
已浏览 846.6万 次2022年5月20日
热门视频
Getting Started with PSTN Calling in Microsoft Teams
15:40
Getting Started with PSTN Calling in Microsoft Teams
YouTubeExpert of Things & Stuff
已浏览 3.9万 次2017年12月14日
How to transcribe your 1:1 PSTN calls in Microsoft Teams
0:34
How to transcribe your 1:1 PSTN calls in Microsoft Teams
YouTubeMicrosoft Teams
已浏览 3.5万 次2022年5月3日
Public Switched Telephone Network Lecture
37:47
Public Switched Telephone Network Lecture
YouTubemrholverson
已浏览 2.5万 次2013年8月26日
Public switched telephone network Technology
Trolls Official on Instagram: "New Zealand’s Parliament was briefly suspended on Thursday after people in the public gallery broke into an unsanctioned haka following the maiden speech of Te Pati Māori’s newest MP, Oriini Kaipara. Kaipara, elected in September to fill a vacant seat, delivered her first address to the House, after which members and attendees performed a pre-approved Māori song to celebrate her induction. However, the public gallery soon erupted into an impromptu haka, with some M
0:52
Trolls Official on Instagram: "New Zealand’s Parliament was briefly suspended on Thursday after people in the public gallery broke into an unsanctioned haka following the maiden speech of Te Pati Māori’s newest MP, Oriini Kaipara. Kaipara, elected in September to fill a vacant seat, delivered her first address to the House, after which members and attendees performed a pre-approved Māori song to celebrate her induction. However, the public gallery soon erupted into an impromptu haka, with some M
Instagramtrolls_official
已浏览 291.6万 次3 周前
History Photographed on Instagram: "In a memorable 1969 episode of Mister Rogers' Neighborhood, Fred Rogers deliberately and subtly defied the racial segregation norms of the time by sharing a small wading pool with Officer Clemmons, one of the show's first recurring Black characters. ⁠ ⁠ The episode aired during a period of intense racial tension in the U.S., just one year after the assassination of Martin Luther King Jr., when many public swimming pools were still segregated and subject to unr
1:29
History Photographed on Instagram: "In a memorable 1969 episode of Mister Rogers' Neighborhood, Fred Rogers deliberately and subtly defied the racial segregation norms of the time by sharing a small wading pool with Officer Clemmons, one of the show's first recurring Black characters. ⁠ ⁠ The episode aired during a period of intense racial tension in the U.S., just one year after the assassination of Martin Luther King Jr., when many public swimming pools were still segregated and subject to unr
Instagramhistoryphotographed
已浏览 83.5万 次3 周前
“LUNATIC HILLBILLY GETS SAUCED 😳 During 1st Amendment Audit in Springfield, Vermont | Law&Odd”
0:59
“LUNATIC HILLBILLY GETS SAUCED 😳 During 1st Amendment Audit in Springfield, Vermont | Law&Odd”
YouTubeLAW & ODD
已浏览 229.9万 次1 周前