Yes. Colt’s network encryption services protect optical and voice services with end-to-end encryption, this includes Ethernet Line, Wave, Private Wave, IP VPN and Voice.
Colt's Voice Encryption provides additional security for voice services, including SIP Signalling Encryption and Audio Encryption.
SIP encryption is offered using Transport Layer Security (SIP-TLS) encryption, with mutual authentication, and supports both Asymmetric Encryption (AES) and Triple Data Encryption (3DES)
Colt Audio Encryption protects the audio stream with SRTP (Secure Real Time Protocol) multimedia encryption, which is an IETF cryptographic protocol used to secure communications over an insecure network, ensuring the confidentiality and integrity of messages in multimedia streams.