Hi,

I have an IPPBX 2820 unit which is working, generally, well.

Internally there is one VigorPhone 350, and 6 Cisco SPA303 phones.

However, after a few days, the quality of the external phone calls deteriorates to a point of being unable to hear the calls.
A reboot of the router, and all is well again - for a few days.

Do i appear to have a faulty unit, or should i be looking elsewhere for issues?

Thanks

c