[jitsi-users] Jitsi TLS Protocol and Cipher Suite

When I call other jit.si users, I see the following details at the top
of the technical call info:

Call information :
Identity : georgemaschke@jit.si (Jabber)
Signalling call transport : TLS TLS protocol : TLSv1
TLS cipher suite : SSL_RSA_WITH_RC4_128_MD5

Is there any reason why TLS 1.2 and a stronger cipher suite with PFS
couldn't be used, for example TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384?

- George Maschke