Why does my phone sound like a fax machine when I answer the phone from another phone?

[iMore Question]

Why does my phone sound like a fax machine when i answer the phone from another phone

When out of town when I receive a call I answer it gives a noise like a fax machine

 

[Tartarus]

Why does my phone sound like a fax machine when i answer the phone from anoth...

Probably because of bad reception on one side of the call. No biggie