SIP line names containing uppercase characters prevent mobile call via push notification
Given I am a user with a WebRTC (SIP) line containing uppercase characters (A-Z)
Given I register with a mobile application on the SIP line
When someone calls me
Then my application receives the push notification
Then the caller hears that I am unavailable
Expected: the caller hears a ringing sound
The Asterisk dialplan does not process uppercase SIP line names correctly.