diff --git a/src/include/switch_platform.h b/src/include/switch_platform.h
index ce81653295..b3513b3211 100644
--- a/src/include/switch_platform.h
+++ b/src/include/switch_platform.h
@@ -113,6 +113,7 @@ typedef unsigned long	in_addr_t;
 #else
 #define SWITCH_MOD_DECLARE(type)		__declspec(dllimport) type __cdecl
 #endif
+#define SIGHUP SIGTERM
 #else //not win32
 #define SWITCH_DECLARE(type) type
 #define SWITCH_DECLARE_NONSTD(type) type
diff --git a/src/include/switch_utils.h b/src/include/switch_utils.h
index 46fdb8fe64..4ab3585b72 100644
--- a/src/include/switch_utils.h
+++ b/src/include/switch_utils.h
@@ -79,7 +79,7 @@ SWITCH_DECLARE(char) switch_rfc2833_to_char(int event);
   \param the charecter to encode
   \return the event id for the specified character or -1 on an invalid input
 */
-SWITCH_DECLARE(int) switch_char_to_rfc2833(char key);
+SWITCH_DECLARE(unsigned char) switch_char_to_rfc2833(char key);
 
 /*!
   \brief Duplicate a string 
diff --git a/src/mod/endpoints/mod_exosip/mod_exosip.c b/src/mod/endpoints/mod_exosip/mod_exosip.c
index fa5045ff30..6dbe77b9dc 100644
--- a/src/mod/endpoints/mod_exosip/mod_exosip.c
+++ b/src/mod/endpoints/mod_exosip/mod_exosip.c
@@ -673,7 +673,7 @@ static switch_status exosip_write_frame(switch_core_session *session, switch_fra
 			tech_pvt->out_digit_sofar = 0;
 			tech_pvt->out_digit_dur = rdigit->duration;
 			tech_pvt->out_digit = rdigit->digit;
-			tech_pvt->out_digit_packet[0] = switch_char_to_rfc2833(rdigit->digit);
+			tech_pvt->out_digit_packet[0] = (unsigned char)switch_char_to_rfc2833(rdigit->digit);
 			tech_pvt->out_digit_packet[1] = 7;
 
 			ts = tech_pvt->timestamp_dtmf += samples;
@@ -767,7 +767,7 @@ static switch_status exosip_send_dtmf(switch_core_session *session, char *digits
 	for(c = digits; *c; c++) {
 		struct rfc2833_digit *rdigit;
 
-		if ((rdigit = malloc(sizeof(*rdigit)))) {
+		if ((rdigit = malloc(sizeof(*rdigit))) != 0) {
 			memset(rdigit, 0, sizeof(*rdigit));
 			rdigit->digit = *c;
 			rdigit->duration = globals.dtmf_duration * (tech_pvt->read_codec.implementation->samples_per_second / 1000);
diff --git a/src/switch_utils.c b/src/switch_utils.c
index 66f507a20a..9085309db9 100644
--- a/src/switch_utils.c
+++ b/src/switch_utils.c
@@ -38,16 +38,16 @@ SWITCH_DECLARE(char) switch_rfc2833_to_char(int event)
     return (event > -1 && event < sizeof(RFC2833_CHARS)) ? RFC2833_CHARS[event] : '\0';
 }
 
-SWITCH_DECLARE(int) switch_char_to_rfc2833(char key)
+SWITCH_DECLARE(unsigned char) switch_char_to_rfc2833(char key)
 {
     char *c;
 
     for (c = RFC2833_CHARS; *c ; c++) {
         if (*c == key) {
-            return (c - RFC2833_CHARS);
+            return (unsigned char)(c - RFC2833_CHARS);
         }
     }
-    return -1;
+    return (unsigned char)-1;
 }
 
 SWITCH_DECLARE(unsigned int) switch_separate_string(char *buf, char delim, char **array, int arraylen)