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KJRock's profile

1 Message

Thursday, December 28th, 2023 8:21 PM

Contact/Address Book for home line cannot be edited, added to or anything. (Error code 305)

For almost two months I have not been able to add contacts or edit any on the AT&T website for a home line. I get the following error:

An error has occurred in Address Book, please try again. (code 305)

Doesn't seem to matter what device or platform. I also cannot block calls. 

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Community Support

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231.4K Messages

4 months ago

We hear you, and let's shed some light on your concerns, @KJRock!

 

Please confirm whether you have DSL or POTS service. As a result, we will be able to assist you properly.

 

Looking forward to hearing from you!

 

Thank you for contacting AT&T Community Forum!

Harry, 

AT&T Community Forum Specialist.

Contributor

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5 Messages

2 months ago

I have the same problem.  I cannot find anywhere what a "code 305" error is (perhaps AT&T could make a list of these error codes like a number if companies do?).

Also, you should define POTS - I found it ("plain old telephone service" - hardly a common), but there is no need to use jargon many people will not understand.

FYI, I have a DSL phone.

ACE - Expert

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27.7K Messages

2 months ago

POTS is if your phone line terminates to an outside wall.

VOIP/Digital phone service is when your phone line terminates at the gateway

Not sure what DSL phone is.  🤷‍♂️

Expert

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19.3K Messages

2 months ago

Type of service? POTS, AT&T phone (digital service called VoIP) cell, something else? Make and model of phone. DSL Internet service would have nothing to do with the phone itself. 

Contributor

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5 Messages

2 months ago

I'm sorry to be unclear.  DSL (VOIP) service.  This was in answer to the ATT Help question above.

I have a Siemens Gigaset C595 phone.  However, I am not sure why that matters as the problem comes up when trying to add a name to the address book on the address book one accesses via the Account Overview page (which is always very slow to load, like many pages on ATT.com) on the My ATT account page.  The question is, "What is the error code 305?"

Add to Address Book

Enter contact information below then select either Save or Save and Add New.

An error has occurred in Address Book, please try again. (code 305)

Expert

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19.3K Messages

2 months ago

Well, I'm still confused as to what service you have. Does your phone plug into the back of your AT&T modem? If yes it's not DSL. Your statement of VoIP indicates it plugs into the phone port of an AT&T modem. Where are you trying to build this contact list? If you mean you're trying to add a contact to the phone features in your MyAtt account or any other online account no one on this forum can fix that for you as we're customers just like you and have no access to your account or the ability to repair AT&T website. You'll have to call AT&T tech support. The reason I asked for the make and model of phone as I had and still don't have any idea where your actually trying to add this. 

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