In my line of work, we use the Euro currency symbol (€) a lot.
It looks like messages sent on-net between the mobile carriers successfully show the € symbol.
However, delivering messages off-net to other mobile networks converts the € symbol to 'e'.

Is this a fault with the interconnects between the mobile networks?
Or is this just the way it is (an irreparable fault)?


Example One:
Vodafone Mobile sends SMS to Vodafone Mobile:
Message Sent: "Testing € symbol"
Message Received: "Testing € symbol"


Example Two:
Vodafone Mobile sends SMS to Telecom Mobile:
Message Sent: "Testing € symbol"
Message Received: "Testing e symbol"


Example Three:
Telecom Mobile sends SMS to Vodafone Mobile:
Message Sent: "Testing € symbol"
Message Received: "Testing e symbol"


It seems to be an issue no matter what phone I use (android, ios, different android phones, blackberry or symbian). 

Has anyone else noticed this issue?