|
|
|
Call setup is a series of connections that occur between an endpoint placing a VoIP call and the active call server. The call server is responsible for certain signaling to the endpoint that allows it to play a dial tone and initiate the call. The call server also establishes a connection to the destination endpoint in the PSTN. The call setup protocol defines the messages that are passed among the call server, gateway, and endpoints.
The default call setup threshold consists of the following metrics, each of which has its own threshold values. UC Monitor triggers incidents when metrics exceed these thresholds.
|
Metric |
Default Threshold |
Minimum Observations |
|---|---|---|
|
Delay to Dial Tone |
2000 ms (Degraded) 4000 ms (Excessive) |
Five originating calls |
|
Post-Dial Delay |
2000 ms (Degraded) 4000 ms (Excessive) |
Five originating calls |
|
Call Setup Failures |
2 percent (Degraded) 10 percent (Excessive) |
Five originating calls |
| Copyright © 2012 CA. All rights reserved. |
|