Quote Originally Posted by ymhee_bcex View Post
I have two accounts (one for me and one for in-laws). We live a mile away, same ISP (time warner); pretty much same everything. My service works for 8 months without any problems (I used supplied adapter for a few months to make sure that the service was good. Once I was comfortable, I switched to BYOD - first old Sipura, and now OBiHai). Never had a need to call support. Wrote a review for DSLR. I was very happy with it and convince my in-laws to switch to VOIPo as well.

My in-laws have constant problems. With BYOD adapter voice quality is just terrible. Once I switched to provided adapter, it is good for a few days, then it's bad. I called support twice; they tweaked something - and the quality improved for a week or two but then it's bad again. I know it's not ISP (even if they weren't able to fix it) - they have another adapter on the network, that they use for international calls (with Call With Us). For troubleshooting, I also set up an IPKall to this adapter. So, whenever voice quality is bad on VOIPo line, first thing I check is to call their other phone - and invariably, it sounds much better there.

Unfortunately, they don't speak English, and in order to troubleshoot with Voipo support I need to be in their house during business hours, which is not always possible. So, often by the time I am ready to call support, the problem goes away. However, the reliability is just not there.
Unfortunately that's really just the nature of VoIP in that there are so many variables that one person could have a good experience with a provider and their neighbor could have a bad experience. The variable could be something as simple as the model/firmware of the router the two people use.

Comparing provider to provider doesn't really help in that kind of scenario though since all VoIP networks are completely different and the way they handle things + the carriers on the backend can dramatically affect things. There's not really standardization per say between different providers even if they're both using the SIP protocol.