Hi
I have seen this issue and its not difficult to resolve.
The red light on your feature phone indicates that there is a message in the voicemail box - probably from the last time it was used (2nd hand unit). On the feature phone, press the message key, it will prompt you for the mailbox. The diamond that is cblack will be the one with a message. Try default password of 1111, then #, then just follow the prompts to listen /delete etc.
As for the busy tone, this means that it is not picking up the line when you want to dial. The default is to require you to press 9, but you can change this if you wish. It is useful to leave the 9 in if you have multiple extensions, so that the system knows you want to dial internally vs externally. If you want to skip the 9, press Program key, then select System Programming (1111 is default password), then System, scroll across until you get to Auto Line Selection, then switch to On.
If this does not work, it means that your line is not set correctly.
If using Featureline, make sure that this is selected in the system programming options as being On, but it is probably not worth using with the Micro, so you may be able to save a few quid on this.
If you need more help, please PM me.
Kindest
David
