Instruct: Classify the given review into positive or negative sentiment.
Query: Siemens not to be trusted

I have a Siemens 2420 system with 8 handsets. I have sent several in for repair with not much improvement. The handsets constantly drop out in the middle of conversations. The noise in the earpiece is terrible and the person on the other end of the line cannot hear you. I emailed Siemens about this and they admitted that they had a problem with the handsets' shielding which caused the dropouts. I then asked if I could get some kind of credit towards their new model since I had spent a small fortune buying the base and all the handsets for teh 2420, but they would not do that. Why would I trust them with this new system when they will not support the old one. At least they should have redesigned the handsets so that we could use the system. I am stuck trying to decide what to replace my 2420 with. The one thing that the Siemens has going for it is the features. Unfortunately, if you cant use the phone, they are useless.