Permit more lines within a SIP body to be parsed.

The example given within the related issue showed 120 lines, which was mostly
a result of the body being XML.

(closes issue #17179)
 Reported by: khw


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@261560 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/sip/include/sip.h

@@ -93,7 +93,7 @@
 #define MAX_AUTHTRIES             3      /*!< Try authentication three times, then fail */
 
 #define SIP_MAX_HEADERS           64     /*!< Max amount of SIP headers to read */
-#define SIP_MAX_LINES             64     /*!< Max amount of lines in SIP attachment (like SDP) */
+#define SIP_MAX_LINES             256    /*!< Max amount of lines in SIP attachment (like SDP) */
 #define SIP_MIN_PACKET            4096   /*!< Initialize size of memory to allocate for packets */
 #define MAX_HISTORY_ENTRIES		  50	 /*!< Max entires in the history list for a sip_pvt */