Dial Plan Solutions ccie certification training center in delhi gurgaon india

Network Bulls
www.networkbulls.com
Best Institute for CCNA CCNP CCSP CCIP CCIE Training in India
M-44, Old Dlf, Sector-14 Gurgaon, Haryana, India
Call: +91-9654672192

Dial plan issues in multisite deployments can be solved in the following ways:
• Overlapping and nonconsecutive numbers: You can implement access codes and
site codes for intersite dialing. This allows call routing that is independent of directory
numbers. Appropriate digit manipulation (removing site codes in Dialed Number
Identification Service [DNIS] of outgoing calls) and prefixing site codes in Automatic
Number Identification (ANI) of incoming calls are required.
• Variable-length numbering plans: Dial string length is determined by timeout.
Overlap sending and receiving is enabled, allowing dialed digits to be signaled one
by one instead of being sent as one whole number.
Dial Plan Solutions 45
• Direct inward dialing (DID) ranges and E.164 addressing: Solutions for mapping
of internal directory numbers to PSTN numbers include DID, use of attendants to
transfer calls, and extensions added to PSTN numbers in variable-length numbering
plans.
• Different number presentation in ISDN (Type of Number [TON]): Digit
manipulation based on TON enables the standardization of numbers signaled using
different TONs.
• Toll bypass, tail-end hop-off (TEHO), and PSTN backup: Can be implemented by
appropriate call routing and path selection based on priorities.
Dial Plan Components in Multisite Deployments
Table 2-1 lists dial plan components and their configuration elements in CUCM and in
Cisco IOS gateways.
Table 2-1 Fixed Versus Variable-Length Numbering Plans
Dial Plan Component Cisco IOS Gateway CUCM
Endpoint addressing ephone-dn, dynamic POTS,
dial peers
Directory number
Call routing and path selection Dial peers Route patterns, route groups,
route lists, translation patterns,
partitions, CSSs
Digit manipulation Voice translation profiles
prefix, digit-strip, forwarddigits,
num-exp
Translation patterns, route patterns,
route lists, significant
digits
Calling privileges COR and COR lists Partitions, CSSs, time schedules,
time periods, FACs
Call coverage Dial peers, call applications,
ephone hunt groups
Line groups, hunt lists, hunt
pilots
NOTE All these elements are discussed in other books, such as Cisco Voice over IP
and Implementing Cisco Unified Communications Manager, Part 1 (CIPT1 v6.0).
Information on how to use these elements to implement a dial plan in multisite
deployments is provided in Chapter 4, "Implementing a Dial Plan for Multisite
Deployments."