[FritzBox TR-064] Add function: Change Call Deflection

[sihui]

@Bredmich

Is there anyone able to develop this function?

Maybe this

Introducing BountySource for funded development

All, While in the early days of openHAB every user was also a developer, the number of non-tech users steadily grew over time. This led us to the situation, where the number of ideas and feature requests clearly outweighs the capacity of the openHAB developer community. Having more ideas than it is possible to implement brings up the question of prioritisation. For users that are developers, this is rather easy as they decide for themselves what is most important for them and then come up with…

could help