Make sure your phone's name doesn't contain apostrophes. Apostrophes may render the network unreadable. I don't own a cellphone, however, others have successfully tethered their eDGe with phones that are a capable of being a mobile Wi-Fi hotspot. Check out these threads for some useful help:
https://www.mobileread.com/forums/sho...ight=tethering
https://www.mobileread.com/forums/sho...ight=tethering