[Home](./index.md) > [@firebase/auth-types](./auth-types.md) > [PhoneMultiFactorSignInInfoOptions](./auth-types.phonemultifactorsignininfooptions.md) > [session](./auth-types.phonemultifactorsignininfooptions.session.md) ## PhoneMultiFactorSignInInfoOptions.session property The [MultiFactorSession](./auth-types.multifactorsession.md) obtained via [MultiFactorResolver.session](./auth-types.multifactorresolver.session.md). Signature: ```typescript session: MultiFactorSession; ```