2 beeps heard in earpiece before outgoing call connects

Question

I have scoured the internet and called Verizon yet I can't seem to figure out why my phone is doing what it's doing...for the past 1-2 months, whenever I make an outgoing call on my iPhone 5, I hear 2 beeps in the earpiece before the call connects (I hear it when on speaker phone as well).
The sound is similar to the beep/tone you hear if someone calls in while you're on the phone. My location doesn't matter (at home, out and about, etc...), I hear the beeps everytime.
Does anyone else hear 2 beeps when attempting to make a call? I've looked at every possible setting on my phone, did a couple of hard resets, and nothing seems to work in turning it off.
BTW, the beeps are more annoying than anything (calls still connect and are audible) but my phone never did this before and was just curious.
Thanks!

Answer 1

Hello!
More than likely your phone is under a network extender coverage area. You can check this by dialing #48 and call - if it says "You are under network extender coverage" - this means you are pulling from either yours or a nearby neighbor's Wireless Network Extender.