Model 1260 phohe,voicemail set up not on instructions

As you have not provided the model number of the Uniden chordless phone system I will have a guess and ask you to see page 50 in the manual at this website for instructions on setting the answering machine. Hope it helps.
http://www.uniden.com.au/RESOURCES_MAIN/pdfs/DSS7955_1_OM.pdf

Are you referring to the messages on your answering machine? If so, what model Uniden phone/answering machine?

Or are you asking about the voicemail system provided by your telephone company? If so, contact your telephone company for instructions on accessing their voicemail system.

If you have an Uniden answering machine, select it from the list beginning here to download a copy of the manual. If the voicemail is on the voicemail system provided by your telephone company, contact them for instructions on accessing their system.

If you require further assistance, please specify the model of your Uniden DECT 6.0 system.

Since you didn't specify the model of your Uniden DECT 6.0, I can only suggest you select it from the list beginning here to download a copy of the manual.

If the voicemail is on the voicemail system provided by your telephone company instead of on an answering machine in your home, you'll need to contact your telephone company for instructions on accessing their voicemail system.

The blinking light is telling you that you have unheard messages on Verizon's voicemail system. Please contact Verizon for instructions on setting up and accessing their voicemail system.

The Uniden D1660-2 isn't an answering machine. If you have a separate answering machine connected to your phone line, please consult its documentation. If you subscribe to a voicemail system offered by your phone company, please contact them for instructions on accessing their voicemail system.
If you need a D1660-2 manual, you may download a copy here.

You need to contact your telephone company for instructions on setting up and using their voicemail system. The Uniden D1660 doesn't record voicemail, though it can tell you when you have voicemail waiting.
You may download the D1660 manual here.

You have unheard messages on the voicemail system provided by your telephone company. This system records messages when someone calls while you're already on the phone. Please contact your telephone company for instructions on accessing their voicemail system.


For the manual, select the model of your Uniden DECT 6.0 phone from the list beginning here.

What model Uniden DECT 6.0 system?

As for the blinking light, you apparently have unheard messages on the voicemail system provided by your telephone company. This system records messages when someone calls while you're already on the phone. Please contact your telephone company for instructions on accessing their voicemail system.

Since you declined to specify the model of your Uniden DECT 6.0 system I can only suggest you select it from the list beginning here to download a copy of the manual.