I actually managed to talk to two people and had like 5 or so responding to my hails. Nice to meet those
And I hope I will hear from the rest here in the future, too 
This game needs FTL- communication, since you can't restrain people from using other methods, but this would again split the userbase completely unnecessarily.
Voice is somewhat bad right now and needs to be polished, text is not very practical for HOTAS users.
Therefore the best way to go would be a proper voice chat which is not restricted to Star-systems, this is one of the very rare cases I have to admit I do not care for any immersion or similar reasons.
Not being able to talk to friends (wherever they are) won't do this game a good deed.
This game needs FTL- communication, since you can't restrain people from using other methods, but this would again split the userbase completely unnecessarily.
Voice is somewhat bad right now and needs to be polished, text is not very practical for HOTAS users.
Therefore the best way to go would be a proper voice chat which is not restricted to Star-systems, this is one of the very rare cases I have to admit I do not care for any immersion or similar reasons.
Not being able to talk to friends (wherever they are) won't do this game a good deed.