The SIS records the following statistics for each type of SIP network transport (UDP, TCP and TLS).
Bytes transmitted — bytesTx
Records the total number of …  | 
…bytes transmitted by the SIP stack.  | 
|---|---|
Increments…  | 
…whenever a SIP message is transmitted. Incremented by the number of bytes in the message.  | 
Decrements…  | 
never.  | 
Default rhino-stats view  | 
delta  | 
Bytes received — bytesRx
Records the total number of …  | 
…bytes received by the SIP stack.  | 
|---|---|
Increments…  | 
…whenever a SIP message is received. Incremented by the number of bytes in the message.  | 
Decrements…  | 
never.  | 
Default rhino-stats view  | 
delta  | 
Messages transmitted — messagesTx
Records the total number of …  | 
…messages transmitted by the SIP stack.  | 
|---|---|
Increments…  | 
…whenever a SIP message is transmitted.  | 
Decrements…  | 
never.  | 
Default rhino-stats view  | 
delta  | 
Messages received — messagesRx
Records the total number of …  | 
…messages received by the SIP stack.  | 
|---|---|
Increments…  | 
…whenever a SIP message is received.  | 
Decrements…  | 
never.  | 
Default rhino-stats view  | 
delta  | 
Transmission errors — errorsTx
Records the total number of …  | 
…transmission errors seen by the SIP stack.  | 
|---|---|
…when sending a SIP message fails because of a network error (such as out of buffer space).  | 
Decrements…  | 
never.  | 
Default rhino-stats view  | 
Receive errors — errorsRx
Records the total number of …  | 
…receive errors seen by the SIP stack.  | 
|---|---|
…when receiving a SIP message fails because of a network error (such as dropped connection).  | 
Decrements…  | 
never.  | 
Default rhino-stats view  | 
Incoming connections — connectionsIn
Records the total number of …  | 
…active incoming TCP or TLS connections.  | 
|---|---|
Increments…  | 
…when the SIP stack accepts a connection from a SIP client.  | 
Decrements…  | 
…when a connection is closed (by the SIP stack or the client).  | 
Default rhino-stats view  | 
gauge  | 
Outgoing connections — connectionsOut
Records the total number of …  | 
…active outgoing TCP or TLS connections.  | 
|---|---|
Increments…  | 
…when the SIP stack successfully opens a TCP or TLS connection with a SIP server.  | 
Decrements…  | 
…when a connection is closed (by the SIP stack or the server).  | 
Default rhino-stats view  | 
gauge  | 
