Polycom (RMX) 1500 User Manual

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Polycom®, Inc. 
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Appendix F- Secure Communication 
Mode
The RealPresence Collaboration Server can be configured to work in Secure Mode or Ultra Secure Mode
For more information see 
  and 
In Secured mode the Collaboration Server and the Collaboration Server Web Client are configured to work 
with SSL/TLS. 
In this mode, a SSL/TLS Certificate is installed on the MCU, setting the MCU Listening Port to secured port 
443.
TLS is a cryptographic protocol used to ensure secure communications on public networks. TLS uses a 
Certificate purchased from a trusted third party Certificate Authority to authenticate public keys that are used 
in conjunction with private keys to ensure secure communications across the network.
The Collaboration Server supports:
● TLS 1.0
● SSL 3.0 (Secure Socket Layer)
SSL 3.0 utilizes 1024-bit RSA public key encryption.
TLS certificates can be generated using the following methods: CSR, PFX and PEM; each giving different 
options for Encryption Key length. The table below lists the SIP TLS Encryption Key length support for the 
various system components. 
SIP TLS - Encryption Key Support by System Component
Certificate Configuration and Management
All Polycom devices used in a Maximum Security Environment require security certificates.
For more details see the Ultra Secure Mode chapter, 
System Component
Key Generation Method
Key Length (bits)
Key generated by
SIP Signaling 
CSR
2048
Collaboration 
Server
PFX / PEM
1024 or 2048
User
Management CSR
2048
Collaboration 
Server
LDAP