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