Iphone 5s Loop Set

[lozza47]

I have a bad hearing problem and wear hearing aids. I have a Bluetooth Loop Set which i have used on several phones over the years with no problems at all. I have just purchased a new Iphone 5s and while blue tooth and my Loop set are switched on, i only get the alert ring tone coming through the phone speaker on incoming calls and NO alert tone coming through for incoming mail or text messages. Totally useless to the hearing impaired. The top of the range phone and you cant get alert tones for mail or messages while blue tooth is on. ????????????