[Home](./index.md) > [sip.js](./sip.js.md) > [SubscriptionDialog](./sip.js.subscriptiondialog.md) > [subscriptionExpires](./sip.js.subscriptiondialog.subscriptionexpires.md) ## SubscriptionDialog.subscriptionExpires property Number of seconds until subscription expires. Signature: ```typescript subscriptionExpires: number; ```