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Feature #2812

Build mixed ISDN / analog telephone network

Added by laforge 7 months ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
hardware
Target version:
-
Start date:
01/01/2018
Due date:
% Done:

0%

Estimated time:

Description

We should build a mixed ISDN = analog telephone network that we can use to interconnect the client-side modems/TAs with the BBS-side modems/TAs.

The network should offer analog as well as digital (S0, S2M) ports.

Rather than going for an old, bulky, power-hungry and proprietary PBX like the Alcatel 4400 series used by the POC, I think we could try to use a more modern approach by using LCR with E1 and quad/octo-S0 boards for the digital side, as well as some a/b adapters, as well as SIP and associated TAs.

  • S2M / PRI is needed to connect devices like Livingston PortMaster3 or other "bulk access" devices that can handle 64k ISDN asd well as [up to] V.90 analog
  • S0 busses are needed for interfacing ISDN cards/TAs on BBSs and Clients
  • L1oIP can be used for virtual E1 trunks between LCR instances in distributed setups
  • SIP with G.711 can be used to interconnect with public SIP operators for dial-in/dial-out
  • consumer-grade PBXs like ISTEC 1003/1008/media can be used for attaching analog modems
  • SIP<->telephony voice gateways like Cisco VGxxx can possibly be integrated, offering 24/48/30 voice lines

The resulting network should be mounted in some portable rack/chassis so it can be transported and set up at events, as needed.

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