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Another option I've used in the past is a Cisco voice gateway (like the VG204) or an FXS card in a random old router configured to be able to just route calls b
by kotaKat 3y ago
Another option I've used in the past is a Cisco voice gateway (like the VG204) or an FXS card in a random old router configured to be able to just route calls between analog ports. The nice way doing it through the VG is it'll pass analog straight through each other without any codec mangling.
I have a VG224 set up like this (local extensions 1001-1024), including a hunt group on x31337 that dials 8 modems I've got connected via a Shiva LanRover.
The bonus with the VGs is they don't need to be networked - you can keep them fully isolated to POTS-only and just use a console cable to set up the config. Of course, if you network them, then you can do Even More Fun Things...
- fullspectrumdev 3y agoBy any chance have you firmware for any of these? I’ve been trying to collect more firmware images for stuff related to Cisco/Linksys/Sipura VoIP/ATA stacks to see if the vulns I was working on in the SPA series actually do impact more stuff. One of my end goals is to attempt to make a patch or something, because all this stuffs out of support.
- kotaKat 3y agoI do not, but that's what 'index of' and just... Googling filenames you get off the Cisco support website gets you.
- sixothree 3y agoThis may be a dumb question, but how do you connect analog devices to this?
- kotaKat 3y agoThe VG204 has 4x RJ11. The VG224 has a telco RJ21 interface (that houses all 24 lines) that you can break out to a punch-down block, or dedicated RJ21-to-RJ11 boxes/panels/cables. In my case I have a breakout box with 24 phone jacks. A VG248 is the same thing, just with two RJ21 interfaces for 1-24 and 25-48.
- sixothree 3y agoThank you very much.