--- ../asterisk-1.4.4/channels/chan_sip.c	2007-04-27 16:04:07.000000000 +0200
+++ channels/chan_sip.c	2007-05-29 16:47:47.000000000 +0200
@@ -6474,6 +6564,11 @@
 		if (*e)
 			*e++ = '\0';
 		e = ast_skip_blanks(e);
+		if (strcasecmp(e, "Cirpack KeepAlive Packet") == 0)
+		{
+			ast_log(LOG_NOTICE, "Cirpack keepalive received.");
+			return -1;
+		}
 		if (strcasecmp(e, "SIP/2.0") ) {
 			ast_log(LOG_WARNING, "Bad request protocol %s\n", e);
 			return -1;
@@ -10831,6 +10939,32 @@
 			ast_queue_control(p->owner, AST_CONTROL_VIDUPDATE);
 		transmit_response(p, "200 OK", req);
 		return;
+	} else if (!strcasecmp(c, "audio/telephone-event")) {
+		/* Support for eConf (France Telecom) we receive an INFO message containing a DTMF in RFC2833 format */
+		get_msg_text(buf, sizeof(buf), req);
+		event = buf[0];
+
+		/* Print out debug if turned on */
+		if (sipdebug)
+			ast_log(LOG_DEBUG, "RTP 2833 in SIP INFO (eConf) Event: %08x \n", event);
+
+		/* Figure out what digit was pressed */
+		struct ast_frame f = { AST_FRAME_DTMF, };
+		if (event < 10) {
+			f.subclass = '0' + event;
+		}
+		else if (event < 11) {
+                	f.subclass = '*';
+		}
+		else if (event < 12) {
+                	f.subclass = '#';
+		}
+		else if (event < 16) {
+                	f.subclass = 'A' + (event - 12);
+		}
+		else if (event < 17) {        /* Event 16: Hook flash */
+                	f.subclass = 'X';
+        	}
+
+                //f.len = duration;
+		f.len = 220 ;
+                ast_queue_frame(p->owner, &f);
+                if (sipdebug)
+                	ast_verbose("* DTMF telephone event received: %c\n", f.subclass);
+
+                transmit_response(p, "200 OK", req);
+                return;
 	} else if (!ast_strlen_zero(c = get_header(req, "X-ClientCode"))) {
 		/* Client code (from SNOM phone) */
 		if (ast_test_flag(&p->flags[0], SIP_USECLIENTCODE)) {