Chapter 11. SIP Traffic

The "anything" option means that any character and any number of characters are allowed in the Tail. The "nothing" option means that the Tail must not contain any character, which means that the username consists only of the Prefix and Head parts.

If you use a Reg Exp, select "-" as the Tail.

When neither the Advanced SIP Routing or the SIP Trunking module has been installed, this column only offers a limited number of options.

Min. Tail

Enter the minimum number of characters in the Tail.

This column is only available when the Advanced SIP Routing or the SIP Trunking module has been installed.

Domain

Enter the domain that the From header should contain. You can enter "*" to match all do- mains, or "*local" to match all Local SIP Domains.

Reg Expr

Instead of entering a username and domain, you can create regular expressions to match the incoming Request-URI.

In this expression, you can also make subexpressions, which can be used in the Forward To table. Subexpressions are made by putting the expression inside parantheses. In the ex- pression (sip:(.+))@3com.com, which matches any Request-URI like sip:user@3com.com, there are two referable subexpressions: sip:user and user. You can create up to 9 subexpres- sions per row.

This column is only available when the Advanced SIP Routing or the SIP Trunking module has been installed.

Read about regular expressions at http://www.regular-expressions.info/. 3Com VCX IP Telecommuting Module supports Extended Regular Expressions.

Delete Row

If you select this box, the row is deleted when you click on Create new rows or Save.

Create

Enter the number of new rows you want to add to the table, and then click on Create.

Forward To

Here you may enter expressions for the Dial Plan, used to define where and how the Telecommuting Module should forward the request using the Dial Plan. Expressions can be defined either by selecting a non-User-account from the Local SIP User Database table, or by defining a replacement URI, port and transport.

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HP VCX Software manual Forward To, Min. Tail