Dialogic 4000 Series SU4.1 Uživatelský manuál stáhnout pdf (Strana 101)

8. How Call Addresses are Processed

Overview of How Call Addresses are Processed

The call addresses provided by the caller can be modified at different stages of the call

processing within Diva SIPcontrol. The reason for multiple manipulation is that it allows for

modifying the address where it is needed, which means that more complex environments

can be configured with less effort, since data does not need to be entered redundantly at

different places. It also makes it easier to "team" SIP peers or PSTN interfaces with different

settings.

Diva SIPcontrol provides two mechanisms for number processing:

 Number Normalization Based on a Dialplan

 Number Modification Using Address Maps

Both mechanisms can be used together.

When using a dialplan, Diva SIPcontrol converts addresses automatically, without any

intervention from the user. This means that Diva SIPcontrol adds or removes a special

prefix to a number with a known number type when converting between a number and an

address. The automatic conversions are done for calling numbers, called numbers, and

redirected numbers. See Common Results for a list of prefixes.

For complex conversions, you can configure an address map for Diva SIPcontrol to use

when converting addresses.

Diva SIPcontrol uses routing conditions, dialplans, and address maps to manipulate call

addresses. For information and examples on how these configuration entities work together,

see How Call Addresses Are Manipulated and Possible Call Routing Scenarios.

Number Normalization Based on a Dialplan

Number normalization based on a dialplan can work on any PRI, BRI, and analog interface,

including interfaces in NT mode. It can also work on SIP peers that do not represent a direct

or indirect connection to a public SIP trunk.

Diva SIPcontrol supports dialplans using the North American numbering plan (NANP). See

North-American numbering plan for more information.

Depending on how it is defined, a dialplan might affect only the numeric part of an address:

 If the address consists of a number only, then the complete address is used to match

a diaplan condition, and the complete address is modified by the matching dialplan.

 If the address is a SIP address with a number in the user part, then only the user

part of the address is used to match a dialplan condition, and only the user part of

the address is modified by the matching dialplan. For example, for SIP address

12345@domain.tld, only 12345 will be used to match a diaplan condition. If Diva

SIPcontrol finds a match, only 12345 will be modified by the matching dialplan.

The Keep SIP URI Domain and Parameters option determines whether the SIP

URI domain and parameters are used as a suffix of the resulting, normalized address.

If this option is enabled, then the SIP URI domain and parameters are kept as a suffix

of the resulting, normalized address. Otherwise, the number normalization process

removes the SIP URI domain and parameters, leaving only the SIP user part in the

resulting address.

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Dialogic 4000 Series SU4.1 Uživatelský manuál Strana 101