The SIS records the following statistics about SIP transactions in the SIP stack.
- Active client transactions — clientTransactionsActive
- Client transactions completed successfully — clientTransactionsCompleted2xx
- Client transactions completed with a redirect response — clientTransactionsCompleted3xx
- Client transactions completed with an error response — clientTransactionsCompletedError
- Failed client transactions — clientTransactionsFailed
- Timed out client transactions — clientTransactionsFailedTimeout
- Retransmits sent on client transactions — clientTransactionsRetransmits
- Active server transactions — serverTransactionsActive
- Server transactions completed successfully — serverTransactionsCompleted2xx
- Server transactions completed with a redirect response — serverTransactionsCompleted3xx
- Server transactions completed with an error response — serverTransactionsCompletedError
- Failed server transactions — serverTransactionsFailed
- Timed out server transactions — serverTransactionsFailedTimeout
- Retransmits sent on server transactions — serverTransactionsRetransmits
Active client transactions — clientTransactionsActive
| Records the total number of… | …client transactions currently in progress. | 
|---|---|
| Increments… | …when a client transaction is created to send a request. | 
| Decrements… | …when a client transaction is terminated (as per RFC3261 §17.1). | 
| Default rhino-stats view | gauge | 
Client transactions completed successfully — clientTransactionsCompleted2xx
| Records the total number of… | …client transactions that completed successfully by receiving a 2xx response. | 
|---|---|
| Increments… | …when a client transaction receives a 2xx final response. | 
| Decrements… | …never. | 
| Default rhino-stats view | delta | 
Client transactions completed with a redirect response — clientTransactionsCompleted3xx
| Records the total number of… | …client transactions that completed by receiving a 3xx redirect response. | 
|---|---|
| Increments… | …when a client transaction receives a 3xx final response. | 
| Decrements… | …never. | 
| Default rhino-stats view | delta | 
Client transactions completed with an error response — clientTransactionsCompletedError
| Records the total number of… | …client transactions that completed by receiving a 4xx-6xx error response. | 
|---|---|
| Increments… | …when a client transaction receives a 4xx-6xx final response. | 
| Decrements… | …never. | 
| Default rhino-stats view | delta | 
Failed client transactions — clientTransactionsFailed
| Records the total number of… | …client transactions that failed due to an internal error. | 
|---|---|
| Increments… | …when a client transaction fails due to an error, such as an  | 
| Decrements… | …never. | 
| Default rhino-stats view | delta | 
Timed out client transactions — clientTransactionsFailedTimeout
| Records the total number of… | …client transactions that timed out waiting for a final response. | 
|---|---|
| Increments… | …when a client transaction’s final response timer expires (Timer B or Timer F in RFC3261 §17.1). | 
| Decrements… | …never. | 
| Default rhino-stats view | delta | 
Retransmits sent on client transactions — clientTransactionsRetransmits
| Records the total number of… | …retransmitted requests sent on client transactions, while waiting for a response. | 
|---|---|
| Increments… | …when a client transaction’s retransmit timer expires (Timer A or Timer E in RFC3261 §17.1). | 
| Decrements… | …never. | 
| Default rhino-stats view | delta | 
Active server transactions — serverTransactionsActive
| Records the total number of… | …server transactions currently in progress. | 
|---|---|
| Increments… | …when a server transaction is created to handle an incoming request. | 
| Increments… | …when a server transaction is terminated (as per RFC3261 §17.2). | 
| Default rhino-stats view | gauge | 
Server transactions completed successfully — serverTransactionsCompleted2xx
| Records the total number of… | …server transactions that completed successfully by sending a 2xx response. | 
|---|---|
| Increments… | …when a 2xx final response is sent on a server transaction. | 
| Decrements… | …never. | 
| Default rhino-stats view | delta | 
Server transactions completed with a redirect response — serverTransactionsCompleted3xx
| Records the total number of… | …server transactions that completed by sending a 3xx redirect response. | 
|---|---|
| Increments… | …when a 3xx final response is sent on a server transaction. | 
| Decrements… | …never. | 
| Default rhino-stats view | delta | 
Server transactions completed with an error response — serverTransactionsCompletedError
| Records the total number of… | …server transactions that completed by sending a 4xx-6xx error response. | 
|---|---|
| Increments… | …when a 4xx-6xx final response is sent on a server transaction. | 
| Decrements… | …never. | 
| Default rhino-stats view | delta | 
Failed server transactions — serverTransactionsFailed
| Records the total number of… | …server transactions that failed due to an internal error. | 
|---|---|
| Increments… | …when a server transaction fails due to an error, such as an  | 
| Decrements… | …never. | 
| Default rhino-stats view | delta | 
Timed out server transactions — serverTransactionsFailedTimeout
| Records the total number of… | …server transactions that timed out waiting for an ACK. | 
|---|---|
| Increments… | …when a server transaction’s ACK timer expires (Timer H in RFC3261 §17.2). | 
| Decrements… | …never. | 
| Default rhino-stats view | delta | 
Retransmits sent on server transactions — serverTransactionsRetransmits
| Records the total number of… | …retransmitted responses sent on server transactions. | 
|---|---|
| Increments… | …when a server transaction retransmits its response, because it received a retransmitted request. | 
| Decrements… | …never. | 
| Default rhino-stats view | delta | 
