Transfer CID on Bridge

Hi all…

We have an emergency service and so…Is there a way to transfer original Caller ID during a bridge to an external route?

We would like to be able to recall customer in case of not being able to answer the call…

Thanks

You will have to elaborate on what version of Asterisk is in use and what technologies. Any modern version will automatically do this when configured (in the case of SIP you need to allow RPID or PAI).