Patch for bug #2142 adds the option for pagerfromline so that you can have
more personalized message.  Matt O'Gorman
Index: apps/app_voicemail.c
===================================================================
RCS file: /usr/cvsroot/asterisk/apps/app_voicemail.c,v
retrieving revision 1.136
diff -u -r1.136 app_voicemail.c
--- apps/app_voicemail.c	18 Jul 2004 20:50:37 -0000	1.136
+++ apps/app_voicemail.c	3 Aug 2004 06:41:00 -0000
@@ -275,6 +275,7 @@
 static int pbxskip = 0;
 static char *emailsubject = NULL;
 static char fromstring[100];
+static char pagerfromstring[100];
 static char emailtitle[100];
 static char charset[32] = "ISO-8859-1";
 
@@ -1031,6 +1032,21 @@
 
 		strftime(date, sizeof(date), "%a, %d %b %Y %H:%M:%S %z", &tm);
 		fprintf(p, "Date: %s\n", date);
+
+		if (*pagerfromstring) {
+			struct ast_channel *ast = ast_channel_alloc(0);
+	                if (ast) {
+				char *passdata;
+				int vmlen = strlen(fromstring)*3 + 200;
+				if ((passdata = alloca(vmlen))) {
+					memset(passdata, 0, vmlen);
+					prep_email_sub_vars(ast,vmu,msgnum + 1,mailbox,callerid,dur,date,passdata, vmlen);
+					pbx_substitute_variables_helper(ast,pagerfromstring,passdata,vmlen);
+					fprintf(p, "From: %s <%s>\n",passdata,who);
+                                } else ast_log(LOG_WARNING, "Cannot allocate workspace for variable substitution\n");
+                                ast_channel_free(ast);
+                        } else ast_log(LOG_WARNING, "Cannot allocate the channel for variables substitution\n");
+                } else
 		fprintf(p, "From: Asterisk PBX <%s>\n", who);
 		fprintf(p, "To: %s\n", pager);
 		fprintf(p, "Subject: New VM\n\n");
@@ -4431,6 +4447,7 @@
 			cat = ast_category_browse(cfg, cat);
 		}
 		memset(fromstring,0,sizeof(fromstring));
+		memset(pagerfromstring,0,sizeof(pagerfromstring));
 		memset(emailtitle,0,sizeof(emailtitle));
 		strncpy(charset, "ISO-8859-1", sizeof(charset) - 1);
 		if (emailbody) {
@@ -4445,6 +4462,8 @@
 			pbxskip = ast_true(s);
 		if ((s=ast_variable_retrieve(cfg, "general", "fromstring")))
 			strncpy(fromstring,s,sizeof(fromstring)-1);
+		if ((s=ast_variable_retrieve(cfg, "general", "pagerfromstring")))
+			strncpy(pagerfromstring,s,sizeof(pagerfromstring)-1);	
 		if ((s=ast_variable_retrieve(cfg, "general", "charset")))
 			strncpy(charset,s,sizeof(charset)-1);
 		if ((s=ast_variable_retrieve(cfg, "general", "emailtitle"))) {