FaxBack Port Server - Manual - Manual (Page 31)

Account Identification
Beyond AccountId and Password, there are some additional fields that may optionally be populated, and are useful
for storing business‐specific information for each user. These are Customer, Source, and CDR Info. These are free‐
text fields that are limited to 64 characters each. All three are also logged to the BillingDb for every fax sent or
received by the account.
Account Types
There are three types of accounts:
• Private (one client, send and receive)
• Shared send‐only (shared by multiple clients, send only)
• Load‐balance group (route receive faxes to multiple accounts)
Most accounts will be Private. A private account can only have one client logged in, and has the capability of
sending and receiving.
A Shared Send‐Only account can have multiple clients logged in. The system will create a temporary account for
each logged in client which will be visible in the Port Server Manager. Each temporary account will be deleted
when that client logs out.
A Load‐Balance group is only a virtual account type. Clients do not actually log in to this account. Instead, faxes will
be distributed to other accounts that are members of this group. How those faxes are distributed is determined by
the delivery policy:
• Alternating (Round‐Robin): each fax will be sent to each group member in turn.
• Most Free Sessions: the Connection Server will evaluate which account has the most free sessions (the
difference between that account’s currently active faxes and its total receive capacity).
• Random: the Connection Server will send each fax to a random group member.
Routing
An account can have one or more DIDs assigned to it. A DID can only be assigned to a single account, but by using
the Failover or Load‐Balance Group the Connection Server can insure that the fax has a client to receive it.
Failover / Alternate
A Private or Load‐balance Group account can have another account assigned as failover. Failover occurs on
inbound faxes when either the account is not logged in or the logged in client has no more receive ports available.
It is also possible to chain multiple failover accounts together so that if the first account is unavailable it will try a
second, and if the second account is unavailable it will try a third, and so on.
For Load‐balance Groups all group members must be unavailable or at capacity before the group’s failover account
is tried. Otherwise, failover works normally.