# Configuration Variables for registrar

## registrar.default_expires

Contains number of second to expire if no expire hf or contact expire present.

Default value: 3600.

Type: integer.

## registrar.default_expires_range

Percent from default_expires that will be used in generating the range for the expire interval.

Default value: 0.

Range: 0 - 100.

Type: integer.

## registrar.min_expires

The minimum expires value of a Contact. Value 0 disables the checking. .

Default value: 60.

Type: integer.

## registrar.max_expires

The maximum expires value of a Contact. Value 0 disables the checking. .

Default value: 0.

Type: integer.

## registrar.em_default_expires

The default emergency expires value of a Contact..

Default value: 3600.

Type: integer.

## registrar.em_max_expires

The maximum emergency expires value of a Contact. Value 0 disables the checking. .

Default value: 60.

Type: integer.

## registrar.em_min_expires

The maximum emergency expires value of a Contact. Value 0 disables the checking. .

Default value: 0.

Type: integer.

## registrar.max_contacts

The maximum number of Contacts for an AOR. Value 0 disables the checking. .

Default value: 0.

Type: integer.

## registrar.retry_after

If you want to add the Retry-After header field in 5xx replies, set this parameter to a value grater than zero.

Default value: 0.

Type: integer.

## registrar.case_sensitive

If set to 1 then AOR comparison will be case sensitive. Recommended and default is 0, case insensitive.

Default value: 0.

Type: integer.

## registrar.default_q

The parameter represents default q value for new contacts..

Default value: -1.

Range: -1 - 1000.

Type: integer.

## registrar.append_branches

If set to 1(default), lookup will put all contacts found in msg structure.

Default value: 1.

Type: integer.

## registrar.realm_pref

Realm prefix to be removed. Default is "".

Type: string.