From bb3ec322fb6b0f7fe2e1db7a12755f372e8efdb8 Mon Sep 17 00:00:00 2001
From: David Baker <dave@matrix.org>
Date: Tue, 15 Dec 2020 16:21:14 +0000
Subject: [PATCH] Ignore party ID if opponent is v0

---
 src/webrtc/call.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/webrtc/call.ts b/src/webrtc/call.ts
index a4f2660ce..83607400c 100644
--- a/src/webrtc/call.ts
+++ b/src/webrtc/call.ts
@@ -483,7 +483,10 @@ export class MatrixCall extends EventEmitter {
         this.setState(CallState.Ringing);
         this.direction = CallDirection.Inbound;
         this.opponentVersion = this.msg.version;
-        this.opponentPartyId = this.msg.party_id || null;
+        if (this.opponentVersion !== 0) {
+            // ignore party ID in v0 calls: party ID isn't a thing until v1
+            this.opponentPartyId = this.msg.party_id || null;
+        }
         this.opponentCaps = this.msg.capabilities || {};
         this.opponentMember = event.sender;