Subj : Re: VOIP.ms Cheap VOIP & CallerID
To   : poindexter FORTRAN
From : Tom Moore
Date : Thu Apr 20 2023 13:08:53

  Re: Re: VOIP.ms Cheap VOIP & CallerID
  By: poindexter FORTRAN to Tom Moore on Thu Apr 20 2023 06:52:00

 > My experience recently has been somewhat limited to inheriting Asterisk
 > PBXes and running 8x8 recently. Way back when, I managed big Nortel
 > switches, and we started running our own SIP trunks over their
 > proprietary boxes. It was nice, instead of having to buy more trunk
 > cards, it was a licensing thing. Get a new keycode, set up another 8 SIP trunks.

Nice!! Most of the analog phone systems I worked on were Samsungs.
Those things did have some features that are hard to duplicate in today's world such as 20 phones in a ring group, shared line appearance for small customers, etc.

 > I had a call center in San Francisco and another in Connecticut, and
 > were able to network the two PBXes and route calls over SIP using an
 > MPLS circuit, and it just worked.

I also did a few of those systems over mpls.
Technically those have the tightest connectivity, but are expensive to keep in place month to month.
We did eventually replace them with vpns over cable connections, but this isn't nearly as reliable.
Cost wise they liked it though.

 > Nortel has been gone for years, but a Nortel PBX "cheat sheet"
 > (https://kataan.org/nortel-pbx-cheat-sheet/) made of notes I've
 > collected over the years still gets a handful of hits daily.

Nice!!
All my phone systems I had in place at individual locations have probably been replaced except for those in Asia as voip isn't liked much in those parts.
I had voip on the inside of the phone systems and pstn trunks on the outside to connect them to their in country phone network.

.