| Exam 300-075 | Question id=2863 | Multi-site Dial Plan for Cisco Unified Communications Manager |
Which statement best describes globalized call routing in Cisco Unified Communications Manager?
| A. |
All incoming calling numbers on the phones are displayed as an E.164 with the + prefix. | |
| B. |
Call routing is based on numbers represented as an E.164 with the + prefix format. | |
| C. |
All called numbers sent out to the PSTN are in E.164 with the + prefix format. | |
| D. |
The CSS of all phones contain partitions assigned to route patterns that are in global format. | |
| E. |
All phone directory numbers are configured as an E.164 with the + prefix. |
For the destination to be represented in a global form common to all cases, we must adopt a global form of the destination number from which all local forms can be derived. The + sign is the mechanism used by the ITU's E.164 recommendation to represent any PSTN number in a global, unique way. This form is sometimes referred to as a fully qualified PSTN number.