Cisco Cisco TelePresence Video Communication Server Expressway 관리 매뉴얼
4.
If a NAPTR record exists for that ENUM domain, this will advise how the number should be converted into one
(or possibly more) H.323/SIP URIs.
(or possibly more) H.323/SIP URIs.
5.
. Note that this
is considered to be a completely new search, and so pre-search transforms and Call Policy will therefore
apply.
apply.
Enabling ENUM Dialing
ENUM dialing is enabled separately for incoming and outgoing calls.
Outgoing calls
To allow locally registered endpoints to dial out to other endpoints using ENUM, you must:
■
configure at least one ENUM zone, and
■
configure at least one DNS Server
section.
Incoming calls
To enable endpoints in your enterprise to receive incoming calls from other endpoints via ENUM dialing, you must
configure a DNS NAPTR record mapping your endpoints’ E.164 numbers to their SIP/H.323 URIs. See the
configure a DNS NAPTR record mapping your endpoints’ E.164 numbers to their SIP/H.323 URIs. See the
Note:
if an ENUM zone and a DNS server have not been configured on the local VCS, calls made using ENUM dialing
could still be placed if the local VCS is neighbored with another VCS that has been appropriately configured for
ENUM dialing. Any ENUM dialed calls will go via the neighbor. This configuration is useful if you want all ENUM dialing
from your enterprise to be configured on one particular system.
ENUM dialing. Any ENUM dialed calls will go via the neighbor. This configuration is useful if you want all ENUM dialing
from your enterprise to be configured on one particular system.
ENUM Dialing for Outgoing Calls
For a local endpoint to be able to dial another endpoint using ENUM via your VCS, the following conditions must be
met:
met:
■
There must be a NAPTR record available in DNS that maps the called endpoint’s E.164 number to its URI. It is
the responsibility of the administrator of the enterprise to which the called endpoint belongs to provide this
record, and they will only make it available if they want the endpoints in their enterprise to be contactable via
ENUM dialing.
the responsibility of the administrator of the enterprise to which the called endpoint belongs to provide this
record, and they will only make it available if they want the endpoints in their enterprise to be contactable via
ENUM dialing.
■
on your local VCS. This ENUM zone must have a DNS Suffix that is the
same as the domain where the NAPTR record for the called endpoint is held.
■
record (and if necessary any resulting URI).
After the ENUM process has returned one or more URIs, a new search will begin for each of these URIs in accordance
with the
with the
. If the URIs belong to locally registered endpoints, no further configuration is required.
However, if one or more of the URIs are not locally registered, you may also need to configure a DNS zone if they are
to be located using a DNS lookup.
to be located using a DNS lookup.
Calling process
The process below is followed when an ENUM (E.164) number is dialed from an endpoint registered with your VCS:
1.
The user dials the E.164 number from their endpoint.
2.
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Cisco TelePresence Video Communication Server Administrator Guide