From 4905b4cd1e40773547a90b16216bb7635e694458 Mon Sep 17 00:00:00 2001
From: Danmei Chen <danmei.chen@belledonne-communications.com>
Date: Thu, 17 Jan 2019 11:52:06 +0100
Subject: [PATCH] fix unvalid sip address begin with sip:

---
 Classes/Contact.m | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Classes/Contact.m b/Classes/Contact.m
index d01d1b759..2161be31a 100644
--- a/Classes/Contact.m
+++ b/Classes/Contact.m
@@ -208,6 +208,7 @@
 	}
 
 	NSString *normSip = [sip hasPrefix:@" "] ? [sip substringFromIndex:1] : sip;
+    normSip = [normSip hasPrefix:@"sip:"] ? [normSip substringFromIndex:4] : normSip;
 	CNInstantMessageAddress *cNSipMsgAddr = [[CNInstantMessageAddress alloc] initWithUsername:normSip service:@"SIP"];
 	CNLabeledValue *sipAddress = [CNLabeledValue labeledValueWithLabel:NULL value:cNSipMsgAddr];
 	NSMutableArray<CNLabeledValue<CNInstantMessageAddress *> *> *tmpSipAddresses = [_person.instantMessageAddresses mutableCopy];