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Anyone with experience with ATT IPflex? More specifically IP Office to SBC to IPflex? Please help! (alien.top)

submitted 11 months ago by UnlikelyFusion@alien.top to c/voip@netheads.online

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I am attempting to ready for a TTU. For one, I have questions on understanding the ATT document that shows the IP addresses and what they correlate to elsewhere. We currently have an Avaya IPO 500v2 connected to an AudiCodes Median800b SBC. We have two test phone numbers assigned with the IPflex order and are trying to set it up to be active with our current configuration. I have more questions and can go into greater detail if someone with experience is willing to assist. I would be so grateful!

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[–] FunnyItWorkedLastTim@alien.top 1 points 11 months ago

I have done a few of ATT IPFlex to Audiocodes SBC integrations with various flavors of PBX/IVR. I have always found their documentation to be crap. Simultaneously way more information that what is needed and lacking critical info on what is needed for a successful TTU. I once went two months where no-one on the ATT side could tell me what IP address/subnet mask the VoIP interface on their router would have, and they refused to have a prep call ahead of the TTU.

In any case, you need to configure your SBC with a dedicated interface to connect directly to the ATT router, they usually have a /29 or /30 network configured on their router. It's a basic NAT traversal setup. The signaling addresses they provide need to be configured as proxies, and you'll probably have to do some manipulations to get OPTIONs, CID and other stuff working.

I think Audiocodes has documentation specifically for IPFlex, so if you have a login, you should start there.

[–] faygo1979@alien.top 1 points 11 months ago

What types of questions are you having? I do not run audio codes SBCs but the format is still the same for all of them

Normally for a test and turn up need to make sure you have network portions configured correctly for routing

For us we have a router that’s connected to the AT&T interface, which passes bgp information . What part are you getting hung up on?

[–] ccagan@alien.top 1 points 11 months ago

I have used IPFlex to connect to lots of IPO500s, but always just ordered either FXO or PRI on the IPFlex side to replace whatever was there already.

[–] JiveTurkey90@alien.top 1 points 11 months ago

I've successfully cutover 3 ipflex services with FreePBX this year. It's a peered connection but they only allow communication with a single IP source public or private is your choice how you want to interface.