# SMS Sign Up

### What is SMS Sign Up?

VAULT offers the convenience of delivering Wi-Fi passwords to subscribers via SMS. To utilize this feature, please contact your VAULT Account Manager. The VAULT team must complete an SMS number registration, which can take up to thirty days to receive. 

### How To Configure SMS Sign Up

To enable SMS sign up for subscribers, you must first configure a unit and service plan tailored for SMS-based registrations. Subscribers wishing to sign up will simply need to send a two-word text message to your designated phone number. The first word of the message will determine the service plan, and the second message will determine the unit or VLAN.

#### Configuring the Service Plan

When [configuring a service plan](/network-administrator-console/network-operator-settings/service-plans.md#what-do-each-of-the-fields-mean), enter the word you want to be associated with this service plan in the SMS Code field. For example, "free."

#### Configuring the Unit

SMS-based sign ups are considered [Guest Subscriptions](/venue-administrator-console/venue-administrator-dashboard/add-guests.md). VAULT needs a VLAN assigned to a unit in order to properly place a device, using a Wi-Fi password generated from an SMS-based sign up, on the correct VLAN. While there are a few configuration methods available, the recommended setup is as follows.

1. [Add a unit](/network-administrator-console/creating-a-new-venue/add-venue-units.md) to your "Global" venue. This is a venue that the VAULT team will have created in your environment.
2. For this purpose, be sure to select Guest Subscription. If doing a CSV upload select ["localwirelessonly."](/network-administrator-console/creating-a-new-venue/add-venue-units.md#what-does-each-of-the-values-mean)
3. For the SMS Code, enter the second half of the two-word message you want subscribers to send. For example, "WiFi."
4. Ensure that the VLAN associated with the unit is configured at all of your Venues with client isolation enabled.

### How to Use SMS Sign Up

In this example, VAULT is configured to receive the SMS message "Free WiFi" at the phone number your VAULT Account Manager provided. When the message is sent to your phone number, the first word indicates the subscriber's chosen service plan, while the second word specifies the VLAN, via the unit, where the subscriber's devices will be placed.


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