The call admission control with the call threshold global command does not block outbound calls from PSTN
From Ciscowiki
| Solution # | K00517777 |
| Title | The call admission control with the call threshold global command does not block outbound calls from PSTN |
| Core Issue | The call admission control (CAC) does not disallow outbound calls with the call threshold global command, because it is designed to block inbound calls only. |
| Resolution |
Call admission control enables control over the audio quality and video quality of calls over a wide-area (IP WAN) link, because it limits the number of calls that are allowed on that link at the same time. For example, call admission control can be used in order to regulate the voice quality on a 56-kbps frame relay line that connects the main campus and a remote site. Refer to Call Admission Control for more information. The call threshold global command does not disallow outbound calls to the Public Switched Telephone Network (PSTN). In order to achieve that, use Research Reservation Protocol (RSVP). Refer to TAC Case Collection Case #K20585672 for more information about RSVP. |
| Problem Type | Gateway or module, Call connection (Connection quality: One-way audio, no busy tone, dropped calls, etc.) |
| Call Connection | Call presentation |
| Call Topology and Direction | IP network > PSTN/PBX/gateway, PSTN/PBX/gateway > IP network |
| Quality of Service (QoS) Features | Connection admission control (CAC) |
| Signaling Protocol | H323 |
