My phone that is associated with my Cox account was stolen. How do I contact Cox to let them know this and provide them with the make and model of my new phone when I cannot call them? I cannot use my phone until I talk to them.

If you mean your telephone modem (eMTA) was stolen, where'd you get the new telephone modem?  Only Cox can issue a compatible eMTA for your service.

As with a personal computer, Cox has nothing to do with landline telephones.  Cox doesn't rent, loan or register telephones.  The only equipment Cox does track is Internet modems, telephone modems and cable-boxes.

If you're logging into your Cox account and seeing a device, this device is your telephone modem.  If you have this modem physically connected to a cable in your home, everything is good.  If you connect a different modem...for another reason...the new modem will appear on your account.  You can't add, change or delete equipment actively communicating with Cox on your account.  You can only physically install or replace the equipment in your home to update your account.

Did you connect the telephone?  Do you get a dial tone?  If not, unplug the modem for a minute, plug it back in, let it fully boot and test for dial tone again.  If this doesn't work, we'll go from there.

Outlook Account

You have 2 versions of Outlook on your computer.  One version is probably part of Office and the other is part of Windows, which is the barebones version, Outlook Express.  If you clicked the email link above and Outlook Express launched on your computer, Outlook Express is your default email client.  Although you've never used it, this is probably the first time you're realizing it because you've never clicked an email link on a webpage.

You can change your default email client in Control Panel via Mail or an equivalent.

Do you mean an IP phone?  When you write "modem," do you mean "router"?  Does Cox provide IP Phone service?  If Cox does provide IP Phone service, you'll need to log into your Cox Business Account...not your Residential Account.  If Cox doesn't provide IP Phone service, you'll need to log into the account of the company providing your IP Phone service.

Did someone steal an IP phone from your house?

From a Cox Phone to Cox account, eMTA, Outlook, desperate & stupid thieves, IP Phone, Cox Business, drugs, cell phone, SIM card, ditial wording, 17 days...

This was fun!  Lose something else!