The vital sign statistics in this section are specific to the Voice Browser service and Telephony Session service. The statistics display when you select these services in the System View.
Browser vital signs
These statistics display when you select the Voice Browser service and then select Browser Vital Signs from the Vital Sign pull-down menu:
Vital sign |
Description |
Average Response Time |
Average browser, recognition, and audio response times for the Voice Browser service, in milliseconds:
- Browser response time is calculated from when the caller finishes speaking (in response to a prompt) to when the caller starts to hear the next prompt.
- Recognition response time is calculated from when the caller stops speaking to when the recognition result is produced.
- Audio response time is calculated from when the application makes a request to play the next prompt to when the caller starts to hear it.
|
Average Call Duration |
The average call duration, in seconds. |
Average Page Cache Hits |
The number of times the Voice Browser service retrieves VoiceXML pages from the cache, expressed as a percentage. |
Telephony vital signs
The Telephony Session service and Voice Browser service show additional information for the telephony line pool configured for the host. These statistics display when you select the Telephony Session service or the Voice Browser service and then select Telephony Vital Sign from the Vital Sign menu.
Telephony Session service
The telephony vital signs for the Telephony Session service are available with the SIP audio provider and NMS CG 6060 series boards. For a list of supported boards, see Supported configurations.
For example, the line pool for a Telephony Session service configured with an NMS CG 6060 series board using a 23-port role might look like this:
Each line maps to trunk and each number maps to a physical port on the telephony board. This example shows that the NMS board has a capacity for four trunks, with 24 ports per trunk.
- The first 23 ports are available for incoming calls.
- Ports 25-47 are available for call transfers.
- Ports 49-96 aren’t being monitored by this instance of the Telephony Session service.
The telephony vital signs display may change depending on the telephony protocol and role assigned to the host. For example, for a TI, ISDN protocol, port 24 corresponds to the D channel and is used for control and signaling information, not voice or data.
The line status for a Telephony Session service on SIP shows the number of ports configured in the role file. For example, a Telephony Session service running 23 ports would look like:
Voice Browser service
The telephony vital signs for a Voice Browser service might look like this:
In this case, each number maps to a logical port, that is, a specific browser instance. A Voice Browser service instance can run many browser instances—the exact number is defined in the role file. This example runs 23 browser instances. The numbers displayed start at 0 and go up to the n- 1 where n = the of browser instances.
The telephony vital signs are available with all telephony types on the Voice Browser service. With an NMS CG 6060 series board, a logical port is dynamically assigned to a potentially different physical port for each call. With SIP, the number of logical ports indicates the maximum number of calls that can be handled at any point in time.
Line or browser status LED colors
The LED colors appearing on the display mean:
- Dark green—The port is idle. No call is in session.
- Bright green—The port is off-hook. A call is in session.
- Gray—Interpretation depends on the service:
- The port is performing post-call processing (Voice Browser service).
- The port is potentially in service but is not being monitored by this particular service instance (Telephony Session service).
- Amber (Telephony Session service only)—The port is out-of-service but still being monitored by the service instance. Amber can indicate many things:
- The switch or network might have a problem.
- The switch might not be configured to take calls on these ports.
- The port may have been taken out of service by the administrator or the port is out of service because of an error condition.
Browser details
Click an LED to display additional information. This information is available only for the Voice Browser service.
- Status—The status of the Voice Browser service: idle, busy or off-hook, or out-of-service.
- ANI—Phone number of the calling party.
- DNIS—Phone number of the called party.
- Device—ID of the device handling the current call.
- Call Duration—The duration, in seconds, that the Voice Browser service is in the state described by Status.
- Executing URL—URL of the resource being executed.
- Session ID—Session ID for the current call session.