> ## Documentation Index
> Fetch the complete documentation index at: https://docs.metriport.com/llms.txt
> Use this file to discover all available pages before exploring further.

# relatedperson_telecom

A contact detail for the person, e.g. a telephone number or an email address (`RelatedPerson.telecom[]`).

**Primary Keys:**

* relatedperson\_telecom\_id

**Foreign Keys:**

* relatedperson\_id - links to the [relatedperson](/medical-api/handling-data/schema-v100/relatedperson/base) table

<div style={{textAlign: 'right'}}><sub>† Metriport Platform added</sub></div>

| Column                     | Data Type | Description                                                    |
| -------------------------- | --------- | -------------------------------------------------------------- |
| relatedperson\_telecom\_id | varchar   | Unique identifier for the telecom row                          |
| relatedperson\_id          | varchar   | Parent related person                                          |
| system                     | varchar   | Contact system: e.g. phone, fax, email, pager, url, sms, other |
| use                        | varchar   | Purpose of contact: `home`, `work`, `temp`, `old`, `mobile`    |
| value                      | varchar   | The actual phone number, email address, URL, etc.              |
| telecom\_rank†             | int       | Stable order of this telecom within the location               |

**Related Tables:**

**Parent:**

* [relatedperson](/medical-api/handling-data/schema-v100/relatedperson/base)