diff -u -r1.677 chan_sip.c
--- chan_sip.c	17 Mar 2005 23:03:07 -0000	1.677
+++ chan_sip.c	19 Mar 2005 18:57:56 -0000
@@ -696,7 +696,7 @@
 	int i, res = 0;
 
 	for (i=1; i< SIP_MAX_METHODS && !res; i++) {
-		if (!strcasecmp(sip_methods[i].text, msg)) 
+		if (!strcmp(sip_methods[i].text, msg)) 
 			res = sip_methods[i].id;
 	}
 	return res;
@@ -3816,7 +3818,7 @@
 		return -1;
 	}
     
-	if ( !strcasecmp(cmd, "SIP/2.0") ) {
+	if ( !strcmp(cmd, "SIP/2.0") ) {
 		/* We have a response */
 		req->rlPart2 = e;
 		len = strlen( req->rlPart2 );
@@ -7519,7 +7520,7 @@
 
 			if (peer->pokeexpire > -1)
 				ast_sched_del(sched, peer->pokeexpire);
-			if (!strcasecmp(msg, "INVITE"))
+			if (!strcmp(msg, "INVITE"))
 				transmit_request(p, SIP_ACK, seqno, 0, 0);
 			ast_set_flag(p, SIP_NEEDDESTROY);	
 			/* Try again eventually */
@@ -8581,7 +8582,7 @@
 
 	
 	/* Find out SIP method for incoming request */
-	if (!strcasecmp(cmd, "SIP/2.0")) {	/* Response to our request */
+	if (!strcmp(cmd, "SIP/2.0")) {	/* Response to our request */
 		p->method = SIP_RESPONSE;
 		/* Response to our request -- Do some sanity checks */	
 		if (!p->initreq.headers) {
@@ -8624,7 +8625,7 @@
 	if (p->icseq && (p->icseq > seqno)) {
 		ast_log(LOG_DEBUG, "Ignoring too old SIP packet packet %d (expecting >= %d)\n", seqno, p->icseq);
 		return -1;
-	} else if (p->icseq && (p->icseq == seqno) && (strcasecmp(cmd, "CANCEL") || ast_test_flag(p, SIP_ALREADYGONE))) {
+	} else if (p->icseq && (p->icseq == seqno) && (strcmp(cmd, "CANCEL") || ast_test_flag(p, SIP_ALREADYGONE))) {
 		/* ignore means "don't do anything with it" but still have to 
 		   respond appropriately.  We do this if we receive a repeat of
 		   the last sequence number  */