213     private final Map<String, Connection> mConnectionById = new ConcurrentHashMap<>();  field in ConnectionService
2220         if (mConnectionById.containsKey(callId)) {  in answerVideo()
2229         if (mConnectionById.containsKey(callId)) {  in answer()
2243         if (mConnectionById.containsKey(callId)) {  in reject()
2279         if (mConnectionById.containsKey(callId)) {  in disconnect()
2288         if (mConnectionById.containsKey(callId)) {  in hold()
2297         if (mConnectionById.containsKey(callId)) {  in unhold()
2306         if (mConnectionById.containsKey(callId)) {  in onCallAudioStateChanged()
2317         if (mConnectionById.containsKey(callId)) {  in onUsingAlternativeUi()
2325         if (mConnectionById.containsKey(callId)) {  in onTrackedByNonUiService()
2333         if (mConnectionById.containsKey(callId)) {  in playDtmfTone()
2342         if (mConnectionById.containsKey(callId)) {  in stopDtmfTone()
2429         if (mConnectionById.containsKey(callId)) {  in addConferenceParticipants()
2506         if (mConnectionById.containsKey(callId)) {  in handleExtrasChanged()
2515         if (mConnectionById.containsKey(callId)) {  in startRtt()
2524         if (mConnectionById.containsKey(callId)) {  in stopRtt()
2533         if (mConnectionById.containsKey(callId)) {  in handleRttUpgradeResponse()
2822         return mConnectionById.values();  in getAllConnections()
3292         mConnectionById.put(callId, connection);  in addConnection()
3306             mConnectionById.remove(id);  in removeConnection()
3352         if (callId != null && mConnectionById.containsKey(callId)) {  in findConnectionForAction()
3353             return mConnectionById.get(callId);  in findConnectionForAction()