Change (and update) callee ID during execution of MP3Player()?

Hello people of Asterisk,

I’d like to implement a service where callers can be served with additional information on there phone while listening to an audio stream.
I already have a setup where a “Set(CONNECTEDLINE(name,i)=…)” works in principle.
But would it be possible to do this while the caller hangs in an executed MP3Player-Application?
I tried this by setting “ConnectedLineName” on the respective channel using AMI. The variable itself is set and can be queried successfully, but the information does not seem to be updated nor a respective SIP packet is sent.

Any hints?


Does no one have an idea about this?