Audio is choppy and several other problems

This X16 Phone system was purchased for our small business the callers have complained they cannot hear me sometimes when I answer. I have heard the callers cut in and out several times as I was speaking to them. The caller id only works on line 1. Over all not of good quality. The phone is made durable it seems like cheap components. Auto Attendant you must use an extension example dial 301 for John Doe you can not press 1 for Jane etc... Kinda Annoying.

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