Here you specify which elliptic curves are to be used for encryption.
   Note: All entries are selected by default.
- SNMP ID:
 - 2.33.11.1.16
 - Console path:
 - Setup > Voice-Call-Manager > SIP-Server > TLS-Server
 - Possible values:
 - secp256r1
 - secp384r1
 - secp521r1