AT&T 1738 Digital Answering Machine "uniden telephone owner manual" Questions

...uniden.com/pdf/TRU8885om.pdf Remote Operation You can check, play, or delete messages, even record a new greeting message from a remote location (when you are away from home, or from another room ...

...uniden 1738 and it keeps flashing a C it won't let me record and I don't know how to get rid of the C or record an outgoing message. Also, where can I get a manual on it? if its the same as the att ...