Cisco TelePresence Video Communication Server Administrator's Manual page 312

Reference material
Registration AllowList [1..2500] Pattern Type: <Exact/Prefix/Suffix/Regex>
Specifies whether the entry in the Allow List is a prefix, suffix, regular expression, or must be matched exactly.
Exact: the string must match the alias character for character.
Prefix: the string must appear at the beginning of the alias.
Suffix: the string must appear at the end of the alias.
Regex: the string will be treated as a regular expression.
Default: Exact
Example: xConfiguration Registration AllowList 1 Pattern Type: Exact
Registration DenyList [1..2500] Description: <S: 0,64>
A free-form description of the Deny List rule.
Example: xConfiguration Registration DenyList [1..2500] Description: "Anybody at
@nuisance.com"
Registration DenyList [1..2500] Pattern String: <S: 0, 60>
Specifies an entry to be added to the Deny List. If one of an endpoint's aliases matches one of the patterns in the
Deny List, the registration will not be permitted.
Example: xConfiguration Registration DenyList 1 Pattern String:
"john.jones@example.com"
Registration DenyList [1..2500] Pattern Type: <Exact/Prefix/Suffix/Regex>
Specifies whether the entry in the Deny List is a prefix, suffix, regular expression, or must be matched exactly.
Exact: the string must match the alias character for character.
Prefix: the string must appear at the beginning of the alias.
Suffix: the string must appear at the end of the alias.
Regex: the string will be treated as a regular expression.
Default: Exact
Example: xConfiguration Registration DenyList 1 Pattern Type: Exact
Registration RestrictionPolicy Mode: <None/AllowList/DenyList/Directory/PolicyService>
Specifies the policy to be used when determining which endpoints may register with the system.
None: no restriction.
AllowList: only endpoints attempting to register with an alias listed on the Allow List may register.
DenyList: all endpoints, except those attempting to register with an alias listed on the Deny List, may register.
Directory: only endpoints who register an alias listed in the local Directory, may register.
PolicyService: only endpoints who register with details allowed by the Policy Service, may register.
Default: None
Example: xConfiguration Registration RestrictionPolicy Mode: None
Cisco VCS Administrator Guide (X6.1) Page 312 of 401