# Subscription Details

Subscription details page displays your phone.systems(TM) total seats and your usage summary.

Each phone.systems(TM) seat entitles you to the following:

[![inline_user](../../_images/inline_user.png)](../../_images/inline_user.png)
1 [User](../Users/users.html#ps3-users)
A unique user seat with access to phone.systems mobile app on unlimited number of devices.

[![inline_check](../../_images/inline_check.png)](../../_images/inline_check.png)
1 [SIP Account Contact Method](../Contact-methods/sip-accounts.html#ps3-sip-accounts)
A dedicated SIP account for connecting your devices to the phone system.

[![inline_check](../../_images/inline_check.png)](../../_images/inline_check.png)
1 [SIP Forwarding Contact Method](../Contact-methods/sip-forwarding.html#ps3-sip-forwarding)
Forwarding of incoming calls to a specific SIP URI address.

[![inline_check](../../_images/inline_check.png)](../../_images/inline_check.png)
1 [PSTN Forwarding Contact Method](../Contact-methods/pstn-routes.html#ps3-pstn-routes)
Forwarding of incoming calls to any standard phone network number (PSTN).

[![../../_images/fig159.png](../../_images/fig159.png)](../../_images/fig159.png)


**Fig. 1.** Subscription Details

To change the number of seats in your phone.systems(TM) subscription, see [Manage phone.systems(TM)
Seats](manage-seats.html#ps3-manage-seats).

**Subscribe**

Subscribe to phone.systems(TM) in the DIDWW User Panel.

[Subscribe to phone.systems(TM)](subscribe.html)

**Manage subscription seats**

Increase or decrease the number of phone.systems(TM) subscription seats in the DIDWW User Panel.

[Manage phone.systems(TM) subscription seats](manage-seats.html)

**Cancel subscription**

Cancel your phone.systems(TM) subscription in the DIDWW User Panel.

[Cancel a phone.systems(TM) Subscription](cancel-subscription.html)