fix Polycom presence notification again

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@44432 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -10952,10 +10952,12 @@ static int handle_request_subscribe(struct sip_pvt *p, struct sip_request *req,
 			if (!strcmp(event, "presence") || !strcmp(event, "dialog")) { /* Presence, RFC 3842 */
 
  				/* Header from Xten Eye-beam Accept: multipart/related, application/rlmi+xml, application/pidf+xml, application/xpidf+xml */
-				/* don't supply pidf+xml to Polycom phones until they fix their firmware to
+				/* Polycom phones only handle xpidf+xml, even if they say they can
-				   parse it properly
+				   handle pidf+xml as well
 				*/
- 				if (strstr(accept, "application/pidf+xml") && !strstr(p->useragent, "Polycom")) {
+				if (strstr(p->useragent, "Polycom")) {
+					p->subscribed = XPIDF_XML;
+ 				} else if (strstr(accept, "application/pidf+xml")) {
  					p->subscribed = PIDF_XML;         /* RFC 3863 format */
  				} else if (strstr(accept, "application/dialog-info+xml")) {
  					p->subscribed = DIALOG_INFO_XML;