Hybrid Line Registration Limitations

The Hybrid Registration feature include the following limitations:
  • Merging of local conference is only supported with open SIP registrations and not supported with Skype for Business (bridging a Skype for Business with an open SIP line is not supported).
  • Local merging of two point-to-point calls made using two different lines between two Polycom Trio systems is not supported.
  • Only call transfers between different SIP registrations with the same SIP call servers is supported. Call transfer between SIP registrations on different SIP call servers is not supported.
  • Transport Layer Security (TLS) encryption of Real-time Transport Protocol (RTP) media for secure communication in hybrid Open SIP registrations is not supported.