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Class of Restriction Requirements
Table E-7 gives typical class of restriction (CoR) definitions commonly deployed in telephony networks. You need to collect your choice of CoRs for the IP Phones.
| Service Level | Allows Calls To |
|---|---|
| 1 (Lobby phones) | All IP Phones; 911 and other services such as 411, 611, local calls (7- or 10-digit dialing based on the site); toll-free numbers; voice mail; block 900 numbers; access to all other customer locations; access to toll calls from other locations |
| 2 (Employee phones) | Level 1 access; plus long-distance calls |
| 3 (Executives phone) | Level 2 access; plus international calling |
Notes/Comments
The CoR feature is enabled by configuring partitions and calling search spaces (CSSs) in CallManager. By configuring different levels of CSS for the IP Phones or for the directory numbers, you can provide different levels of access to the PSTN from IP Phones.
