[Home](./index.md) > [sip.js](./sip.js.md) > [SubscriptionDelegate](./sip.js.subscriptiondelegate.md) > [onTerminated](./sip.js.subscriptiondelegate.onterminated.md) ## SubscriptionDelegate.onTerminated() method Subscription termination. This includes non-NOTIFY termination causes only. Thus this will not be called if a NOTIFY is the cause of termination. https://tools.ietf.org/html/rfc6665\#section-4.4.1 Signature: ```typescript onTerminated?(): void; ``` Returns: `void`