Hypothetical Mikrotik/NAT/SIP question.

[Oaktech]

This is a fairly niche, home based question, hopefully in the right area...

 

I've got a home connection via Toob on City Fibre. I have a Mikrotik Cloudcore router on it. My Mum who shares my connection via a 1km wireless bridge has a Yealink voip device on Freeola. Her phone works perfectly happily.

 

My Wife has decided that she would also like a home phone (a Yealink W73) but there is some confusion as to whether a second standalone voip device, with a separate number, on the same provider will work with stock NAT settings.

 

To add insult to injury the wife has also decreed that I am categorically not allowed to run a PBX at home - I'm on shaky ground with the Unifi Cloudkey!

 

Anyone tried something like this?

[Davit2005]

I don't see why that should not work, each base station/phone should have an independent connection to the provider of the voice solution.

 

I do run a 3cx at home and it does save me money compared to a normal line even cheaper than my ISPs voice product per call. I even have set up CID rules where numbers that are not known go to voicemail and any numbers known go straight to handset but if no answer then go to voicemail, I have not got this flexibility with my ISPs voice package without paying extra. Runs as a VM on Synology. Cost of a Pro license cost me £160 annual then the cost of the SIP trunk per month with 2 numbers £16. Once get all relatives to WhatsApp (or similar) will consider binning the 3cx/sip system completely.

Edited November 16, 2023 by Davit2005

[Oaktech]

I don't see why that should not work, each base station/phone should have an independent connection to the provider of the voice solution.

 

I do run a 3cx at home and it does save me money compared to a normal line even cheaper than my ISPs voice product per call. I even have set up CID rules where numbers that are not known go to voicemail and any numbers known go straight to handset but if no answer then go to voicemail, I have not got this flexibility with my ISPs voice package without paying extra. Runs as a VM on Synology. Cost of a Pro license cost me £160 annual then the cost of the SIP trunk per month with 2 numbers £16. Once get all relatives to WhatsApp (or similar) will consider binning the 3cx/sip system completely.

 

 

The Mikrotik forums suggests that the 2 separate standalone phones to the same provider will confuse the NAT, particularly if the ISP does further NAT down the line.

 

The Freeola voip service is £6.50 a month, so really quite cheap.

 

I think what I'm going to do is to call Freeola and ask them if they can set up a free trial for me and I'll borrow a voip device from work and test it and report back both to here and to Mikrotik.