Yeti switch as b2bua?

Yeti installation and upgrade
1

I am looking into which setup would be most interesting for a hybrid system.
what i want to do is:

  • terminate upstream trunks to yeti for inbound and outbound calls
  • terminate customer on-premises pbx to yeti (via vpn)
  • have yeti route the calls coming from upstream to the correct pbx
  • have yeti route the calls from the customer pbx to the upstream trunk

i.e.: i want yeti to be the only part outside of the customer network and the only part inside my own network. (so the calls would go: trunk - yeti - customer pbx without any other pbx or mediaserver in between)
i do not want yeti to touch anything other than the bare essentials and add rates to the calls coming in from the customer trunks.

i am assuming this is possible, but can anyone confirm? (and maybe give some advice pro/con on this setup?)

the other alternatives i am considering to implement are just terminating upstream trunks to customer PBXs or just throw it all in a cloud pbx setup instead of local or hybrid…)

thanks for reading.

edit: the biggest part of my question is basically: is this a good-use case for yeti or is it better to implement something possibly lighter (like sippy) or heavier (like opensips) to do these tasks.

2

Actually yeti was designed for such tasks. But may be it have more features that you need, I can’t say without details. Also I didn’t catch - do you need rating/billing logic or not?

Could you describe what features you expect from scheme pbx->(yeti/other b2bua)->upstream versus pbx->upstream. Usually yeti(or other b2bua) on the path add you some control on traffic(capacity limiting/billing/number translations/smart routing), helps with protocols interoperability(incompatible SIP behaviors, media transcoding). Especially yeti also have rich CDRs to simplify troubleshooting.

3

Hi dmitry, thank you for your response.

The idea is indeed to have (only) billing logic added and possibly concurrent call limiting.
everything else will be handled by the on-site PBX.

4

So looks like yeti will be good solution for you.