VoiceRegion

- (boolean) custom -Whethever the region is custom.

- (boolean) deprecated - Whethever the region is deprecated.

- (string) id - Id of the region.

- (string) name - Name of the region.

- (boolean) optimal - Whethever the region is optimal.

- (string) sampleHostname - A sample for what a connection might look like.

- (boolean) vip - Whethever the region is VIP only.