[Home](./index.md) > [sip.js](./sip.js.md) > [PublisherOptions](./sip.js.publisheroptions.md) > [params](./sip.js.publisheroptions.params.md) ## PublisherOptions.params property > Warning: This API is now obsolete. > > TODO: provide alternative. > Signature: ```typescript params?: { fromDisplayName?: string; fromTag?: string; fromUri?: URI; toDisplayName?: string; toUri?: URI; }; ```