Hi guys.
Initially, it was a complete and utter no-no to mismatch modem and vendor equipment. Then, we engineers were informed that we could interchange said equipment, but only if you didn't have the correct modem stocked on your van and it would only be a short-term measure until we could return back to the EU with the correct modem.
Then, (This is BT), we were told the two modems were totally interchangeable and it didn't really matter which modem was installed, but if possible, use the correct modem-vendor.
Today's decision ?? Well, I visited my stores earlier this week and tried to get my usual quota of Huawei modems, only to be told that they are running a trial and only issuing ECI modems ?? I've been on long enough to not even bother questioning this decision, it will probably change again next week ??
I posted somewhere on another thread that, with the advent of VDSL 'Self-install', the ISP's are (or indeed have) developing their own built in modem/routers, so all this will probably become a thing of the past as the years roll by ??