To contact the manufacturer of your phone, please click the appropriate link below. For replacement batteries, click here . Antennas are easily broken and difficult to replace. You might try clicking the manufacturer link above, but bear in mind the cost of then antenna will often times be doubled by shipping and handling costs. Sometimes it pays to be good with coat hangers.
Lost handsets are generally a problem.
Unless your manual mentions a reset procedure, it may be cheaper to buy a new phone. Wall transformers are generally easily replaced locally. Just note the voltage, amperage, jack size and polarity of your transformer and obtain an equivalent model locally. Generally there are no economies in repairing a phone that is out of warranty when a comparable new model is even as much as 100 to 150 dollars. If you want to get a repair quote, please click the manufacturer links above.