Outbound switch pacing
US6278776A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1997 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | Dec 22, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/5158
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In an outbound call management system, calls to dial are placed in a buffer queue before transfer to the outbound switch. The rated switch capacity (i.e., X calls per minute) is divided into small submultiples (i.e., Y calls per second) such that short term switch capacity will not be exceeded. Calls are transferred from the queue at the submultiple rate or less depending upon the number of calls in the queue. The time scale is small enough that this instantaneous rate at which calls can be transferred from the queue to the switch does not exceed the instantaneous capacity of the switch. If calls are being placed into the queue at a faster rate than they are sent to the switch, the number of calls in the queue will increase. The call management system will see a resultant apparent increase in the number of placed but unanswered calls. The call management system uses the number of available trunks as a factor when calculating the number of calls to dial, if the number of calls in the queue exceeds a certain number, the call management system will interpret the situation as one in which all the trunks are in use. In this situation, the call management system reduces the number of cal…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.