diff -r 73d852a30c9a -r 263143ec0fb2 asterisk/asterisk.patch.proxymwi
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/asterisk/asterisk.patch.proxymwi	Sun Mar 20 20:03:11 2011 +0100
@@ -0,0 +1,24 @@
+Index: channels/chan_sip.c
+diff -Nau channels/chan_sip.c.orig channels/chan_sip.c
+--- channels/chan_sip.c.orig	2011-01-14 18:32:52.000000000 +0100
++++ channels/chan_sip.c	2011-03-13 14:34:29.000000000 +0100
+@@ -24267,6 +24267,7 @@
+ 	/* Called with peerl lock, but releases it */
+ 	struct sip_pvt *p;
+ 	int newmsgs = 0, oldmsgs = 0;
++	char *s = NULL;
+ 
+ 	if (ast_test_flag((&peer->flags[1]), SIP_PAGE2_SUBSCRIBEMWIONLY) && !peer->mwipvt)
+ 		return 0;
+@@ -24307,6 +24308,11 @@
+ 		}
+ 		/* Recalculate our side, and recalculate Call ID */
+ 		ast_sip_ouraddrfor(&p->sa, &p->ourip, p);
++		/* Set the username = mailbox and remove the context */
++		ast_string_field_build(p, username, "%s", peer->name);
++		s = strchr(p->username, '@');
++		if (s != NULL)
++			*s = 0;
+ 		build_via(p);
+ 		ao2_t_unlink(dialogs, p, "About to change the callid -- remove the old name");
+ 		build_callid_pvt(p);