分域全域基
sub-entire-domain functions SED
VOIP安全认证计费系统IPSAS
VOIP security authenticating and accounting system
安全认证机构
safety certification authority
安全认证角色
security certification role
安全域
Security domain
satty area
security area
security regions
safe basin
security region
safety region
security domains
transient stability secutity region
secure domain
security field
security and safety domain
Enclave
安全域隔离
security domain separation