General Climbing Discussion

Topic	Date	User
girth hitch flip vs climber hitch (Tech Tips)	22-Jun-2005 At 8:24:24 PM	LittleJames
Message
On 21/06/2005 M8iswhereitsat wrote: >~> using mobiles instead of PSTN (copper wire land-line) phones!!! >(Imagine the drag). OK, maybe you can answer this (it came up in exam study the other day and I couldn't remember). Does PSTN stand for Plain Simple Telephone Network, or Packet Switched Telephone Network? The second sounds more likely, but my lecturer swears blind that telephones are circuit switched... Edit: As I hit OK, I suddenly remembered it was Public Switched Telephone Network. Whoops.

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