Lotus Sametime Unified Telephony supports dialing numbers for a subscriber that are shorter than the numbers provided by the public or the private numbering plans. These short numbers are called extensions and they must be the trailing part of either the subscriber number (public numbering plan) or the local number (private numbering plan.
An extension is defined when Nature of Address is set to PNP Extension and Destination Type is set to Home Extension in the Numbering Plan settings
The number is an extension number in Private Numbering Plan. The Prefix Type E164 Prefix Extension, along with DN Minimum Length and DN Maximum Length should determine the extension number.
Lenth of Extensions
In most networks, extension numbers are 2 to 7 digits long, and are typically (but not always) a right-most subset of the public number of the phone in question.
Lotus Sametime Unified Telephony supports extension numbers up to 7 digits in length. Through proper setup of the BG numbering plans and the E.164 numbering plan, extension dialing can be provided:
Within a BG
Between BGs on different Lotus Sametime Unified Telephony switches
The form of number displayed as caller ID
or connected party ID
is controlled by a number of configurable options and by the Display Number Modification
Parent topic: Routing and Translation