# Unsupported Features for Third Party SDK

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```cpp
// Features that we have no plan or are not able to support in the ZRC SDK.

// -------------------------------------------------------------------------------------

// Meeting Chat RichText is not supported in ZRC SDK 6.1.0.

// -------------------------------------------------------------------------------------

// Personal Zoom Room Only Features/APIs:(Not list all the PZR APIs here)

virtual ZRCError ListVirtualBackgrounds() = 0;

virtual ZRCError SetScreenLockStatus(const bool* featureOn, const bool* lock, const std::string newPincode, const uint64_t* seconds, const bool* screensaverOn, const bool* skipped, const bool* cancelIncomingSharing) = 0;

virtual ZRCError EnableSilenceRinger(bool enable) = 0;

virtual ZRCError UpdatePresenceStatus(PresenceType presence, int32_t duration) = 0;

virtual ZRCError HideWelcomeGuide() = 0;

// -------------------------------------------------------------------------------------

// Voicemall and cloud history are PZR only features.

virtual ZRCError MoreSIPVoicemails(int64_t pastTime) = 0;
virtual ZRCError RemoveSIPVoicemail(const std::string& voicemailID) = 0;
virtual ZRCError RemoveAllSIPVoicemails() = 0;
virtual ZRCError PlaySIPVoicemailMedia(const std::string& voicemailID, int32_t progress) = 0;
virtual ZRCError PauseSIPVoicemailMedia(const std::string& voicemailID) = 0;
virtual ZRCError StopSIPVoicemailMedia(const std::string& voicemailID) = 0;
virtual ZRCError TranscribeSIPVoicemailMedia(const std::string& voicemailID) = 0;
virtual ZRCError MoreSIPCloudHistorys(int64_t pastTime) = 0;
virtual ZRCError RemoveSIPCloudHistory(const std::string& historyID) = 0;
virtual ZRCError RemoveSIPAllCloudHistorys() = 0;
virtual ZRCError ClearMissedSIPCloudHistorys() = 0;
virtual ZRCError ChooseSIPLineCallerID(const SIPLineCallerID& lineCallerID) = 0;
virtual ZRCError PickupSIPLineCallInfo(const SIPLineCallInfo& lineInfo) = 0;

// ------------------------------------------------------------------------------------------------------

// Voice command feature needs work with a internal lib.

virtual ZRCError EnableVoiceCommand(bool enable) = 0;
virtual ZRCError VoiceCommandStartListening() = 0;
virtual ZRCError VoiceCommandShowIndicator(const std::string& title, const std::string& detail, const int32_t& duration, const std::string& pronunciation, int32_t indicateId) = 0;
virtual ZRCError VoiceCommandShowIndicatorWithIcon(const std::string& title, const std::vector<VoiceCommandItem>& commands, int32_t duration) = 0;
virtual ZRCError VoiceCommandHideIndicator() = 0;

// -------------------------------------------------------------------------------------
```