--- chan_sip.orig	2013-09-23 09:56:52.919919504 +0200
+++ chan_sip.c	2013-09-23 09:57:08.575959405 +0200
@@ -21004,7 +21004,7 @@ static int handle_response_register(stru
 			}
 			tmptmp = strcasestr(contact, "expires=");
 			if (tmptmp) {
-				if (sscanf(tmptmp + 8, "%30d;", &expires) != 1)
+				if (sscanf(tmptmp + 8, "%30d", &expires) != 1)
 					expires = 0;
 			}