Benefits of Single-Site Deployment
A distinct basement for a converged arrangement band-aid provides cogent amount benefits
and enables Cisco Unified Communications to booty advantage of abounding IP-based applications
in an enterprise. Single-site deployment additionally allows anniversary armpit to be absolutely selfcontained.
There is no annex for account in the accident of an IP WAN abortion or insufficient
bandwidth, and there is no accident of alarm processing account or functionality.
The capital allowances of the single-site archetypal are the following:
■ Ease of deployment.
■ A accepted basement for a converged solution.
■ Simplified punch plan.
■ No transcoding assets are appropriate because of the use of a distinct high-bandwidth
codec.
Design Guidelines for Single-Site Deployment
Single-site deployment is a subset of the broadcast and centralized call-processing
model. Future scalability requires you attach to the recommended best practices specific
to the broadcast and centralized call-processing model. When you advance a stable, single
site that is based on a accepted basement philosophy, you can calmly aggrandize the
IP telephony arrangement applications, such as video alive and videoconferencing, to
remote sites.
Best Practices for Single-Site Deployment Follow these guidelines and best practices
when implementing the single-site model:
■ Provide a awful available, fault-tolerant basement based on a accepted infrastructure
philosophy. A complete basement is capital for easier clearing to Cisco
Unified Communications, affiliation with applications such as video alive and
video conferencing, and amplification of your Cisco Unified Communications deployment
across the WAN or to assorted UCM clusters.
■ Know the calling patterns for your enterprise. Use the single-site archetypal if best of
the calls from your action are aural the aforementioned armpit or to PSTN users alfresco your
enterprise.
■ Use G.711 codecs for all endpoints. This convenance eliminates the burning of DSP
resources for transcoding, and those assets can be allocated to added functions
such as conferencing and MTPs.
■ Use SIP, SRST, and MGCP gateways for the PSTN. This convenance simplifies punch plan
configuration. H.323 ability be appropriate to abutment specific functionality, such as
support for SS7 or Non-Facility Associated Signaling (NFAS), which allows a single
channel on one agenda ambit to backpack signaling advice for assorted digital
circuits.
■ Implement the recommended arrangement basement for aerial availability, connectivity
options for phones (in-line power), QoS mechanisms, and security.