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I can hear a dial tone on my landline, and can call out. However, no one can call me. Help.
Silly question but how do you know they can't call you? What do they hear? Do you have any special features enabled on your account?
Try dialing *73 from your landline to disable any call forwarding.
Because I can't call on my cell phone, and my friends and family have told me.
That's why I qualified my question as silly but you obviously have proof.
When you call yourself, do you just hear the ringing tone, no ringing tone, "not in service" or something else?
What type of telephone modem do you have: standalone, all-in-one? What's its make/model?