Index: asterisk-1.6.2.18/channels/chan_sip.c
===================================================================
--- asterisk-1.6.2.18.orig/channels/chan_sip.c	2011-04-27 15:31:04.000000000 +0100
+++ asterisk-1.6.2.18/channels/chan_sip.c	2011-04-27 15:42:41.000000000 +0100
@@ -10631,7 +10631,9 @@
 		doing_directmedia = (p->redirip.sin_addr.s_addr && p->redircodecs) ? TRUE : FALSE;
 		/* Check if we need video in this call */
 		if ((p->jointcapability & AST_FORMAT_VIDEO_MASK) && !p->novideo) {
-			if (p->vrtp) {
+			if (doing_directmedia && !(p->jointcapability & AST_FORMAT_VIDEO_MASK & p->redircodecs))
+				ast_debug(2, "This call needs video offers, but caller probably did not offer it!\n");
+			else if (p->vrtp) {
 				needvideo = TRUE;
 				ast_debug(2, "This call needs video offers!\n");
 			} else