initialize static method
Initialize SIP service
Implementation
static Future<void> initialize() async {
try {
debugPrint('SIP: Initializing SIP service...');
_sipHelper = SIPUAHelper();
SipService._sipHelper!.addSipUaHelperListener(_instance);
// Get initial registration state
_registrationState = _sipHelper!.registerState;
debugPrint('SIP: Service initialized successfully');
} catch (e, stackTrace) {
_printException('Initialize', e, stackTrace);
rethrow;
}
}