Only called one time and put on hold for manager never picked up called head quarters and tried to complain to them they took the complaint but let me know it was a franchise was privately owned so nobody listened to me about my flat burger aways used a different one after that.
I've never called them, just gone in person, but never had any problems. If they have a cordless phone however it works on the 2.4ghz band, the same one their headsets work on, so could cause interference that causes dropped calls. Don't know for sure, just a possibility.
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