Installation Manual 20 Document #: LTRT-28087
Mediant CCE Appliances
4.1.7 Single Site with High Availability (HA) Compared to Multi-site
Deployments
The following table lists the differences between a single PSTN site with HA support and
multiple PSTN sites deployment (Multi-Site).
It is important that you set the different configuration values according to the rules
described in the table below:
Table 4-1: Single Site with High Availability (HA) and Multi-site Deployments
Item Single-Site with HA Multi-Site
Site Directory Requires the same shared folder
across instances.
Requires a different shared folder across
PSTN sites instances.
SIP Domains Domain names and order should be
the same across instances.
Domain names and order should be the
same across PSTN sites.
Site name Same Site Name across instances Different Site Name across PSTN sites.
Edge Certificate May use the same certificate for all
CCE in the site (may use wildcard).
May use the same certificate for all CCE
in all sites, the certificate should include
all sites SAN (may use wildcard).
VM password Recommended to use the same
password across instances.
May use different password across
PSTN sites.
Virtual machines
Internal IP
Different across instances. Different across PSTN sites.
Edge External
pool FQDN
Same across instances. Different across PSTN sites.
External IP Edge Different across instances. Different across PSTN sites.
PSTN GW
settings
Same gateway and order across
instances.
Different cross PSTN sites.
DNS record Add records with the same External
Access FQDNs and different IP
addresses.
Add records with different External
Access FQDNs and different IP
addresses.
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