diff --git a/sip_trip_phone/sip_trip_phone.crt b/sip_trip_phone/sip_trip_phone.crt
new file mode 100644
index 0000000..00535a6
--- /dev/null
+++ b/sip_trip_phone/sip_trip_phone.crt
@@ -0,0 +1,24 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----