I have had this so called phone product by ZTE Corp for a short time now but I purchased at a T-Mobile store. THIS IS THE WORST PHONE I HAVE EVER BOUGHT IN THE LAST 19 YEARS. Hands down. I purchased the ZTE model #Z981 around December of 2017. I have had two (2) replacement phones since then for a total of 3 phones including the original phone. (less than 6 months) = 3 phones I have spent hours on the phone with the T-mobile tech's or at their store trying to fix the issues with NO success with the replacement phones or their trouble shooting, including wiping out my phone and reinstalling all proper apps. Again, NO success I was totally upset and asked the T-M rep what am I to do if you can not fix the problem. Answer, call ZTE directly. I did call ZTE yesterday 5/7/2018 and their customer service phone system sucks, on hold 26 minutes, hung the phone up and called back and hit a different key on the phone to purchase an item, Lo and behold, a ZTE representative answered within less than one minute. I explained my frustration of how many phones I've been through in less than 6 months, phone not ringing every time, message alert not working many of times ( lost work projects because of this), face hang ups when you are talking, volume really is bad, ( many, many times the volume is very low even at max setting), typing is slow about 30% of the time when I am texting or emailing ( there is a slight pause between letters, when scrolling it freezes up on the screen a lot and I need to reboot the phone. The ZTE representatives answer for the most part was, sorry I understand, you can send the phone to us (ZTE) and we will trouble shoot. I informed the rep again, I've been dealing with this B.S enough and asked him what are they (ZTE) going to do different than T-Mobile. The rep just gave me more B.S. I asked if I send my phone, what will I use in the mean time. Response: they need two (2) credit cards, one for the phone they would send me first be for I send my phone and the 2nd credit card for some other B.S. I explained why should I be put through this when the phone as not been working properly from the get go and I've already spent hours upon hours throughout the months with T-mobile. His response was: It's under warranty and that is how it works here. With much frustration I told the rep that their customer service sucks and can't believe he can't step out of the box as the floor manager and make a decision on his own when I as a customer have been through so much B.S and ZTE's only solution is it is under warranty and they will take a look at it if I want them to. At this point, I just hung up. I've dealt with customer service issues most of my adult working life in the legal industry and I know for a fact, solutions are always there to make the customer happy, even if your company takes a financial hit. We are a small company and those financial hits hurt at times more than others but then customer came back 99% of the time with more work . My point is a large Corporation as ZTE would not hurt financially as a small company would. My answer for ZTE is greed and does not care about customers really, they play the part but not really. Very upset customer.