Supported protocol versions and cipher suites

Vonage Contact Center supports only the following TLS/SSL protocol versions and cipher suites:

Protocol version

TLS v1.2 and TLS v1.3

TLS 1.0 and TLS 1.1 are not supported. Do not use.

Cipher suites and supported protocol versions

Protocol version
Ciphers Suite Name (IANA)
Cipher Suite Name (OpenSSL)
Retirement
TLS v1.3

TLS_AES_128_GCM_SHA256TLS_AES_128_GCM_SHA256

TLS_AES_256_GCM_SHA384TLS_AES_256_GCM_SHA384

TLS_CHACHA20_POLY1305_SHA256TLS_CHACHA20_POLY1305_SHA256
TLS v1.2

TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256ECDHE-RSA-AES128-GCM-SHA256

TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384ECDHE-RSA-AES256-GCM-SHA384

TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256ECDHE-RSA-AES128-SHA256January  27, 2025

TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384ECDHE-RSA-AES256-SHA384January  27, 2025

Retired cipher suites

Ciphers Suite Name (IANA)
Cipher Suite Name (OpenSSL)
Retired
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256ECDHE-ECDSA-AES128-SHA256June 3, 2024
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384ECDHE-ECDSA-AES256-SHA384June 3, 2024
TLS_DH_anon_WITH_AES_128_GCM_SHA256AES128-GCM-SHA256June 3, 2024
TLS_RSA_WITH_AES_128_CBC_SHA256AES128-SHA256June 3, 2024
TLS_DH_anon_WITH_AES_256_GCM_SHA384AES256-GCM-SHA384June 3, 2024
TLS_DH_anon_WITH_AES_256_CBC_SHA256AES256-SHA256June 3, 2024
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