Microdowell BAYCOM 2200 Series Manual de usuario descargar pdf (Pagina 23)

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Step 2: Introduce IP

on the Trunking Side

Phase 2 introduces SIP-based IP trunks (H.323

is also available), giving customers the option

of transitioning their network from digital to IP.

Alternately, BCM450 enables customers to keep

their TDM trunks (or a combination of TDM

and IP trunks) and migrate to IP desk sets within

their business environment.

Since the LAN is now open to external networks

(via the Internet), Nortel Secure Router (SR) 1004

is introduced to ensure secure communications

across the IP network.

Additionally, the SR 1004 enables headquarters-

to-branch ofﬁce connectivity, resulting in higher

efﬁciency and, in the case of a geographically

distant branch, lower costs.

Results: The customer gains branch ofﬁce

connectivity that costs less and enables greater

productivity than traditional PSTN connections.

The customer can also run all BCM450 applications.

Importantly, the customer can manage a phased

approach to introducing IP at the desktop at a

pace that’s appropriate for their business goals.

Note: Nortel offers a number of different solutions

for connecting a customer to the Internet, including

the Business Secure Router and the Business Services

Gateway (among others). The SR 1004 has been

chosen for this scenario.

Internet

Migrate traffic from

PSTN to Internet

Business

Communications

Manager 450

Business Series

Terminal T7316E

Secure Router 1004

Workstations

Digital Mobility

Controller 080

Digital Mobility

Base Station

PSTN

Digital Mobility

Handset 7440

Baystack 255

Switch

Media Bay

Modules

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Microdowell BAYCOM 2200 Series Manual de usuario Pagina 23

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