? test.call
Index: channels/chan_sip.c
===================================================================
RCS file: /usr/cvsroot/asterisk/channels/chan_sip.c,v
retrieving revision 1.517
diff -u -r1.517 chan_sip.c
--- channels/chan_sip.c	3 Oct 2004 19:59:45 -0000	1.517
+++ channels/chan_sip.c	4 Oct 2004 13:02:20 -0000
@@ -1853,7 +1853,11 @@
 			fmt=ast_getformatbyname(codec);
 			if (fmt) {
 				ast_log(LOG_NOTICE, "Changing codec to '%s' for this call because of ${SIP_CODEC) variable\n",codec);
-				p->jointcapability=fmt;
+				if (p->jointcapability & fmt) {
+					p->jointcapability &= fmt;
+					p->capability &= fmt;
+				} else
+					ast_log(LOG_NOTICE, "Ignoring ${SIP_CODEC} variable because it is not shared by both ends.\n");
 			} else ast_log(LOG_NOTICE, "Ignoring ${SIP_CODEC} variable because of unrecognized/not configured codec (check allow/disallow in sip.conf): %s\n",codec);
 		}