integrated a fixed for Exception calling supplied by http://www.ip-phone-forum.de/showthread.php?t=267477&p=2095971&viewfull=1#post2095971
integrated a fixed for Exception calling supplied by http://www.ip-phone-forum.de/showthread.php?t=267477&p=2095971&viewfull=1#post2095971

Skyr/CardDAV-PHP,kai-c/CardDAV-PHP,jens-maus/CardDAV-PHP