Hunt order has made no difference. I tried the right order, tried reverse order, even tried mixing them up.
Let me go back in time...
This system was installed nearly a year ago. For the first few months it worked great! Then everything started going down. I got complaints of dropped calls, but only once in a great while. I also had call quality issues, but I was able to get those corrected. Then the dropped calls started getting more frequent.
About 3 months ago I got a call from the customer who was very unhappy because they were dropping calls multiple times per day. I verified all software was up to date (which it was) and even swapped out a couple of phones that seemed to be more centered around the drops. Nothing helped. After checking everything I finally figured out that it was the gateway rebooting.
I checked the phone lines into the gateway, I actually found that this entire time they were installed in the wrong order. I had lines 2 and 4 swapped. I changed the order back to they way it was supposed to be. Checked the line settings again and let the customer know what i did.
I got a call the next day and they said it was worse than before, now calls were dropping about every hour. They were getting very frustrated by this time. I went back and put the lines back (incorrectly) the way they were before (when it worked fine), that did not help. I tried other orders, even blocked outbound on a couple of lines. No help.
My last shot was I installed a new gateway (about a month ago). When I installed it I put the lines in the correct order. The very next day they dropped calls again, the new gateway was also rebooting.
I was just informed last week that this phone system has been removed and I have lost a customer. I can't blame them, I was apprehensive when we chose this system and I should have followed my gut. They were patient for nearly a year working through all of the issues, but in the end this system just did not cut it. My other customer that has this system is still fine, but they have only 2 lines and only 10 phones, with low call volume.
DLink, we don't have time for you guys to take a month or more to figure out the reboot problems. If I could do it over again I would have gone with a different system. Too late now.