MCK EXTender 7000 for Branch Offices
MCK EXTender 7000
This integrated networking equipment provides the full functionality of the corporate
voice systems to remote employees, regardless of their location or network connection,
and offers rich local calling capabilities and survivability to branch offices
The MCK EXTender 7000
is integrated networking
equipment that resides at the
remote branch office location
and communicates with the
corporate voice system via the
EXTender PBXgateway II.
Branch office users rely on
the MCK EXTender 7000
for convenient, reliable and
affordable connections to
the corporate voice system
and to bring them closer
More and more, organizations today find
Deceptively small for its considerable
to their local customers,
themselves needing to expand into new
power, the MCK EXTender 7000 serves
partners and suppliers.
regions to bring their operations closer
as the conduit for communication conver-
to customers, partners and suppliers,
gence by aggregating, prioritizing and
or to draw from a larger pool of qualified
sending both the voice and data traffic
resources, or simply as a result of mergers
originated at the remote branch office to
and acquisitions. As expansion costs can
the corporate voice and data networks.
This solution is ideal for
companies with geographically
dispersed branch offices with
13 workers or more and that
typically have a moderate to
be considerable, organizations look for
ways to leverage existing investments
With the MCK EXTender 7000, you have
both locally and with the
and resources across locations. MCK
instant access to the corporate voice system.
corporate voice system.
solutions provide maximum flexibility for
Although the system may be located across
such organizations by meeting both their
the state, country or world, you make and
immediate needs as well as positioning
receive calls as if the system and the local
for future growth into larger offices,
telephone company (aka Local Exchange
new technologies and networks.
Carrier or LEC) were merely at arms
high level of communication
length. The voice system can be an AvayaTM
MCK’s Distributed Voice Solutions
affordably and seamlessly extend
the features and functionality of
existing corporate voice systems to:
• Branch Offices
• Call Centers
across traditional and nextgeneration networks.
The MCK EXTender 7000 for Branch
DEFINITY® or an ECLIPS Media Servers
Offices is the latest multi-user offering
and Gateways, a Nortel Meridian® or a
from MCK Communications. It is an
Nortel Norstar® and the WAN network
integrated networking product that
connection may be circuit or packet-based.
delivers rich local calling capabilities,
MCK lets you choose what suits your
access to local trunk lines and the full
specific situation best for today yet allows
functionality of the corporate telephone
maximum flexibility for future expansion.
system to remote offices over circuit-
The MCK EXTender 7000 also enables any
and packet-based networks.
phone connected to the corporate voice
The MCK EXTender 7000 for Branch
Offices seamlessly and affordably connects
remote offices to corporate resources,
eliminating the barriers between voice
and data, remote and corporate, local and
national, country and world.
system to use the branch office's local lines
resulting in significant telecommunication
cost savings for the organization.
MCK EXTender 7000
The MCK EXTender 7000 unites
business office telephony across the
entire corporation. Regardless of
location, your employees have access
to the rich set of corporate voice
system features and functionality on
all calls, whether placed over the
WAN connection or the local lines.
Plain old telephone service (POTS)
continues to be available even when
the WAN connection to the central
system fails. System administrators
and telecommunication managers
appreciate the inherent survivability
and remote management capabilities
of the MCK EXTender 7000. Moves,
adds and changes are amazingly easy
and can be done from a central
location. And these are just a few of
the many features and benefits available on the MCK EXTender 7000 for
Branch Offices.
The MCK EXTender 7000 is equipped
with dual console ports (see picture
below). These ports allow a system
administrator to attach a modem to
one and use the other for a local
terminal connection. This versatility
makes remote troubleshooting and
maintenance a breeze.
Two DB-9 console ports for easy
system management
•Unified Communications and
Centralized Management
Each employee, whether at the
corporate headquarters or a branch
office, is on the same voice system
and dialing plan and has access
to the same features and applications
resulting in an increase in employee
productivity, an improvement in
customer service and a unified image.
Day-to-day management of the
branch office's users can be done
from a central location, including
moves, adds and changes, as well
as system performance monitoring.
The MCK EXTender 7000 can be
remotely managed through a variety
of remote access options, and users'
port configurations and permissions
are controlled at the central voice
system as if all employees were
physically under one roof.
•Improved Return on Investment
Decentralized organizations with
multiple sites can leverage the full
functionality of a single voice system
and its supported applications. No
need to purchase an expensive and
voice system or supported business
applications for each remote
branch office.
•Network Efficiency
Ability to directly terminate the
network reduces footprint and
wiring requirements at both the
corporate and remote office locations.
The complete MCK EXTender 7000
and EXTender PBXgateway II solution
is outfitted with a built-in T1, PRI and
frame relay interface eliminating the
need to purchase external network
access devices to connect to the Wide
Area Network (WAN). In addition,
the dual port integrated network card
enables the aggregation of voice and
data traffic for transmission to the
main office as well as the provisioning
of local dialing trunks for the
remote branch office.
•WAN Bandwidth Conservation
The MCK EXTender 7000 processes the
audio portion of calls made to either
extensions at the branch office or to the
local area, resulting in WAN bandwidth
preservation. The MCK EXTender 7000
only sends the voice traffic over the
WAN link when voice features are
•Business Quality Voice on Local Calls
The MCK EXTender 7000 relies on its
voice hairpinning feature to guarantee
business quality voice on calls made
and received using the local trunk lines.
Branch office employees connected
to the MCK EXTender 7000 are
able to place and receive local and
emergency calls even when the
WAN link to the corporate voice
network is down.
•The MCK EXTender 7000 connects
across the WAN to the EXTender
PBXgateway II installed on the
digital line side of the corporate voice
system and terminates the digital sets
at the branch office.
•Configuration and programming
can be accomplished via either an
HTML interface, or through a
console interface using a dialup
modem, direct serial connection,
Telnet, or inband RVP.
•Every MCK EXTender 7000 comes
equipped with a dual port network
interface card required for the direct
termination of up to two T1, PRI or
frame relay lines.
•Comprehensive Survivability
Local-hosted mode:
When the WAN link between
the MCK EXTender 7000 and the
EXTender PBXgateway II goes down,
users at the branch office can access
the local trunk lines to place and
receive calls via the PSTN.
•When running MCK's Remote Voice
Protocol™ (RVP) over circuit-switched
networks, the MCK EXTender 7000
interfaces directly with the network
via one of the network interface ports.
•Dual Port Integrated Network Card
The built-in network card available on
the MCK EXTender 7000 terminates up
to two (2) T1, PRI on frame relay lines1
eliminating the need for separate CSUs
or DSUs.
•DSU Functionality
The integrated network card enables
the MCK EXTender 7000 to be the single
network termination device for both
voice and data traffic at the remote
branch office.
•Rich Local Calling Capabilities With
Full Access to corporate voice system
Multiple channels can be allocated from
the T1 or PRI line for use as local trunk
lines. The MCK EXTender 7000
manages voice traffic on calls made or
received on the local trunk lines.
•Long-distance Toll Bypass
Any user connected to the corporate
voice system can be configured to
access a local trunk line on the MCK
EXTender 7000 when placing a call to the
branch office's local area.
•The MCK EXTender 7000 can be
configured to run on IP transport
over circuit-switched, frame relay
and IP networks.
•When running MCK's Remote Voice
Protocol over Internet Protocol™
(RVPoIP) over IP-based networks,
the MCK EXTender 7000 connects to
an IP-capable CSU/DSU or router
via one of the 10/100Base-T ports.
The CSU/DSU or router must be
configured to provide Quality of
Service* (QoS) support in order to
guarantee voice quality in RVPoIP
Emergency mode:
A single analog port provides Plain
Old Telephone Service (POTS) for
emergency calls in the event of a
wide area network failure.
(all G3 releases) and ECLIPS Media
Servers and Gateways (digital phones only)
•Nortel Meridian® and Nortel Norstar®
•Internal power supply
•One RJ-11 Analog port for POTS (emergency backup line)
•Network interface card with two RJ-45 connectors
•Two RJ-45 10/100Base-T Ethernet (AUX LAN for RVPoIP and/or remote management;
LAN for RVPoIP traffic)
•Two DB-25 WAN ports for serial RVP connection. Redundant interfaces include V.35,
RS-232 or RS-530
•One Amphenol connector for 50-pin RJ-21 cable for interface with digital telephone sets
MCK EXTender 7000
•TCP/IP protocol support for IP traffic
and management access
•RVPoIP uses UDP/IP protocol for voice
•Serial RVP uses HDLC encapsulation
for voice transmission
•Management and Utilities - Telnet,
inband RVP, RS-232 console interface,
•Wind River's VxWorks® operating system
•Software upgradeable via LAN FTP,
RS-232 serial port to PC, or inband
connection between the MCK EXTender
7000 and the EXTender PBXgateway II
MCK EXTenderTM 7000
MCK EXTenderTM 6000
Best suited for organizations with branch
offices located outside of the corporate
voice system’s local calling area
Addresses the needs of branch offices
within the corporate voice system’s
local calling area
Includes integrated WAN interface
Uses external network termination
equipment such as a router
Cost-effective solution for sites with
13 or more users per location
Cost-effective solution for 12 or fewer
users per location
Best solution for geographically disperse
businesses looking for robust local calling
capabilities and survivability options
Best solution for businesses with low
requirements for access to local trunk lines
(i.e., inbound/outbound call centers,
regional businesses, etc.)
Easily scaleable in 24-user increments
Easily scaleable in 8 and 12-user increments
•Choice of voice compression standards:
G.729A (8 kbps)
G.726 (24 or 32 kbps ADPCM)
G.711 (64 kbps PCM)
•G.165 echo canceller software,
with MCK proprietary double-talk
detection enhancement
•MCK Remote Voice Protocol (RVP)
•MCK Remote Voice Protocol over IP
•IP voice packets are tagged for network
traffic prioritization using IP Precedence
or DiffServ
•Universal auto ranging
•Line voltage: 100 – 240 V
•Frequency: 47 – 63 Hz
•Maximum power consumption:
75 Watts
•Size: 17" x 11" x 1¾"
(432mm x 280mm x 44mm)
•Weight: 8.0 lbs (3.6 kg)
•Temperature: 32° - 130° F (0° - 55° C)
•Form Factor: Low profile, 1U rack
mountable unit
•Relative humidity: 5 to 95%
Other Components:
•Motorola MPC860T processor
•FCC Part 15 Class A and FCC Part 68,
CE Mark, Industry Canada CS-03,
NRTL/CSA, VCCI Class 1 and
CISPR 22 Class A
•16 MB Flash Memory, 16 MB SDRAM
•DSP Analog Devices 2185 (52 MIPS)
•One-year limited warranty
for parts and labor
Product specifications subject to change without notice.
*MCK's IP-based products utilize Voice over IP (VoIP) technology
to deliver remote voice solutions. The voice quality of these
solutions is dependent on variables such as available bandwidth, network latency and quality of service (QoS) initiatives,
all of which are controlled by the network and Internet service
providers. Because these variables are not in MCK's control,
it cannot guarantee the performance of the user's IP-based
remote voice solution.
Software release 3.1 is required for direct termination of frame
relay. MCK, the MCK logo, MCK EXTender, PBXgateway, RVP
and RVPoIP are trademarks of MCK Communications, Inc.
Other brand and product names referenced herein are
trademarks of their respective holders.
© 2003 MCK Communications, Inc.
MCK Communications, Inc.
Corporate Headquarters
117 Kendrick Street
Needham, MA 02494-0708
Toll Free: 888-454-7979
Telephone : 617-454-6100
Fax: 617-454-6101
Research & Development Center
4040 Bowness Road N.W.
Calgary, AB Canada T3B 3R7
Toll Free: 800-661-2625
Telephone: 403-247-9777
Fax: 403-247-9078