Should work fine right out of the box..
Radios should have some "default" setting when first powered on, typically default setting will not have "group" or "Privacy" modes turned on.
My suggestion is to make sure you do not have a "group" setting or "Privacy" settings turned on.
See page 10 of your manual for how to turn on/off the group setting and turn it off if it is on. This way you can ignore setting group codes, IDs, caller IDs and ring tones as you are not using them in a group setting.
Basically you are setting the radio to "Standard Mode", see bottom of page 11 in the manual.
Do not set "privacy codes", you want this feature OFF, top of page 12 explains how to turn on/off privacy codes..
Enabling group and privacy modes puts the radio into a Tone squelch mode, the squelch will only allow sound to come through the speaker IF the proper sub audible tone is transmitted. This only works IF you have BOTH radios setup correctly, each radio will have to have the same sub audible tone turned on and at the same frequency.
The biggest downside to having group and privacy settings enabled is if for any reason one of the units settings get changed by accident you will no longer hear each other basically making them 100% useless..
The online manual can be found
HEREIf the direct link above doesn't work, you can find the manual from Midlands website
HERE scroll to the bottom and you will see product support and the manual..