---
title: Facsimile Telephone Number
description: Values of this syntax hold fax telephone numbers with optional additional fax parameters.
component: pingds
version: 8.1
page_id: pingds:schemaref:s-FacsimileTelephoneNumber
canonical_url: https://docs.pingidentity.com/pingds/8.1/schemaref/s-FacsimileTelephoneNumber.html
---

# Facsimile Telephone Number

Values of this syntax hold fax telephone numbers with optional additional fax parameters.

The syntax follows this ABNF:

```
fax-number       = telephone-number *( DOLLAR fax-parameter )
telephone-number = PrintableString
fax-parameter    = "twoDimensional" /
"fineResolution" /
"unlimitedLength" /
"b4Length" /
"a3Width" /
"b4Width" /
"uncompressed"
```

|               |                                                           |
| ------------- | --------------------------------------------------------- |
| *OID*         | 1.3.6.1.4.1.1466.115.121.1.22                             |
| *Description* | Facsimile Telephone Number                                |
| *Origin*      | [RFC 4517](https://datatracker.ietf.org/doc/html/rfc4517) |