Multi-Tech Systems Voice Over IP A Primer For Resellers Instructions Manual

							Copyright © 2003 Multi-Tech Systems, Inc.  All rights reserved.19
Multi-Tech Pre-Sales and Post-Sales Support
At  Multi-Tech,  we  believe  our  resellers  are  truly  an  extension  of  our  sales  force. Therefore,  we’ve  put 
together a Voice over IP support program to provide you with both pre-sales and post-sales support. 
Optimum Reseller Program
Our pre-sales support starts with our Optimum Reseller program. Once you sign on, you will receive a 
complete  sales  kit  on  Multi-Tech  solutions. This  kit  includes  contact  information,  product  brochures, 
and  other  sales  tools.  In  addition,  as  a  registered  Multi-Tech  Optimum  Reseller,  you  will  receive  the 
following:
•Free Pre-Sales Support - unlimited access to our Inside Sales Specialists, your fi rst line of support 
to  help  you  win  business.  Your  second  line  of  support  includes  access  to  our  Product  Support 
Specialists who can assist you with your product confi guration needs.
•Free Technical Training  -  an  invitation  to  our  traveling  roadshow  seminar  series  in  which  you’ll 
receive detailed sales and technical training on Voice over IP, VPN and other Multi-Tech solutions.
•Exclusive Promotions - offered monthly, these special promotions are designed to help you profi t 
by selling more Multi-Tech solutions.
•Demo Equipment - You’ll be eligible to purchase “not-for-resale” (NFR) demo equipment.
•On-going Communication - Our business is about communication so we believe that keeping you 
abreast of the latest advances in technology is key to a successful reseller partnership.
•Free  Marketing  Materials  -  customize  promotional  direct  mail,  faxblasts,  and  e-mail  blasts  with 
your  logo  and  contact  information.  These  marketing  materials,  available  free  of  charge,  are 
available for promoting the MultiVOIP and RouteFinder VPN solutions to your customer base.
To  join  the  Optimum  Reseller  Program,  simply  fi ll  out  an  application  on  our  web  site  at: 
www.multitech.com/PROGRAMS/Opt_App.asp
MultiVOIP Marketing Literature
Multi-Tech has designed a detailed product brochure and an educational VOIP technology guide for your 
customers. Both are available on our web site, or can be ordered, free of charge, for customer mailings, 
trade  shows,  or  other  promotional  activities.  Just  call  1-888-288-5470  (U.S.  &  Canada)  or  763-785-3500 
and ask for our reseller marketing specialist.
•MultiVOIP brochure (#86002030) - an overview of the product features and benefi ts.
•Voice over IP Technology Guide (#86000461) - an introduction to Voice over IP.
Technical Support
Multi-Tech provides FREE, toll-free, post-sale, technical support for the product. Our technical support 
team can be reached by calling: 1-800-972-2439 (U.S. & Canada) or 763-785-3500. 
						

							Copyright © 2003 Multi-Tech Systems, Inc.  All rights reserved.20
Warranty and Overnight Replacement Service
The  MultiVOIP  product  warranty  is  two  years.  In  addition  to  our  warranty,  we  offer  an  Overnight 
Replacement  Service  to  eliminate  concerns  of  downtime  on  the  VOIP  network*.  The  Overnight 
Replacement Service provides the following benefi ts:
•Maximizes equipment reliability
•Streamlines problem resolution
•Includes all overnight shipping charges
•One-time fee
•2-year coverage
     *  For U.S. customers only.
For more information, visit our web site at www.multitech.com/programs/orc.
In summary
We  hope  you  found  that  this  primer  addressed  your  basic  questions  regarding  Voice  over  IP  and 
Multi-Tech’s MultiVOIP gateway solution. We feel strongly that Voice over IP can help you differentiate 
your  business  and  give  you  a  competitive  advantage.  But  don’t  take  our  word  for  it,  you  be  the  judge. 
Call our toll-free demo line at 1-877-TRYVOIP and bring convergence to your customers today.  
						

							Copyright © 2003 Multi-Tech Systems, Inc.  All rights reserved.21
VOIP Glossary of Terms
Bad  Frame  Interpolation  -  Interpolates  lost/corrupted  packets  by  using  the  previously  received  voice  frames.  It 
increases voice quality by making the voice transmission more robust in bursty error environments.
Bandwidth  -  The  transmission  capacity  of  a  communications  line.  It  is  a  factor  in  determining  the  amount  of 
information and the speed at which a medium can transmit data or voice.
Bps (bits per second) - A unit to measure the speed at which data bits can be transmitted or received.
Cable Connections - Cable modems allow a PC or networked computer to transmit and receive data over a cable TV 
network  (CATV).  Because  existing  CATV  networks  already  employ  high-bandwidth  coaxial  cable  into  the  home  or 
offi ce, these modems are much faster than dial-up analog modems offering speeds from 3 to 10M bps.
Central  Offi ce  (CO)  -  The  lowest,  or  most  basic  level  of  switching  in  the  PSTN  network.  A  business  PBX  or  any 
residential phone connects to the PSTN at a central offi ce.
Circuit-switched Network - A technology used by the PSTN that allocates a pair of conductors for the exclusive use 
of  one  communication  path.  Circuit  switching  provides  a  temporary  connection  of  two  or  more  communications 
channels  using  a  fi xed,  non-shareable  path  through  the  network.  Users  have  full  use  of  the  circuit  until  the 
connection is terminated.
CODEC - Coder-decoder compression scheme or technique. In Voice over IP, it specifi es the voice coder rate of speech 
for a dial peer.
Compression - Used at anywhere from 1:1 to 12:1 ratios in VOIP applications to consume less bandwidth and leave 
more  for  data  or  other  voice/fax  communications.  The  voice  quality  may  decrease  with  increased  compression 
ratios.
DiffServ  (Differentiated  Services)  -  Is  a  quality  of  service  protocol  that  prioritizes  IP  voice  traffi c  to  help  preserve 
voice quality even when network traffi c is heavy.
DSL (Digital Subscriber Line) - A technology that allows a provider to use the excess bandwidth found in a copper 
line for the provision of data services. Its maximum download speed is 1.5M bps.
E&M (Ear and Mouth) - The interface on a VOIP device that allows it to be connected to analog PBX trunk ports (tie 
lines).
Echo Cancellation - The elimination of an echo in a two-way transmisison.
Ethernet  -  A  10-megabit/100-megabit  baseband  local  area  network  that  allows  multiple  stations  to  access  the 
transmission medium at will without prior coordination.
Forward Error Correction - Increases voice quality by recovering lost or corrupted packets.
Frame - A group of data bits in a specifi c format to help network equipment recognize what the bits mean and how 
to process them. The bits are sent serially, with a fl ag at each end, signifying the start and end of the frame.
Frame Relay - A fast-packet data communications standard that allows a network to carry data frames in packets 
of  varying  length;  usually  used  to  connect  LANs  or  for  LAN-to-WAN  connections. They  are  protocol  independent 
making it a less expensive, high-speed network.
FXO (foreign exchange offi ce) - The interface on a VOIP device for connecting to an analog PBX extension.
FXS (foreign exchange station) - The interface on a VOIP device for connecting directly to phones, fax machines, and 
CO ports on PBXs or key telephone systems.
H.323  -  An  industry-standard  call  setup  protocol  designed  to  standardize  VOIP  communications  between  other 
H.323 telephony solutions.
ITU  (International  Telecommunications  Union)  -  A  civil  international  organization  established  to  promote 
standardized telecommunications on a worldwide basis. 
Internet - Refers to the computer network of many millions of university, government and private users around the 
world. Each user has a unique Internet address (IP address). 
						

							Copyright © 2003 Multi-Tech Systems, Inc.  All rights reserved.22
Internet Protocol (IP) - A protocol used to route data from its source to its destination in an Internet environment. It 
is a highly distributed protocol (each machine only worries about sending data to the next step in the route).
IP address (or Internet Address) - A 32-bit address used by IP data networks to uniquely identify the location of a 
device on a network. Normally printed in dotted decimal format (e.g. 129.128.44.227).
IP Gateway - A network device that converts voice and fax calls, in real time, between the PSTN and an IP network.
IP Gatekeeper - An H.323 entity that defi nes the policies that govern the multimedia system (e.g. dialing plans, user 
privileges, bandwidth consumption, etc.). It also provides the means to extract information from such a system for 
billing or other purposes.
ISDN (Integrated Services Digital Network) - Provides a digital telephone service which allows both data and voice 
communication  over  the  same  telephone  line  and  at  signifi cantly  faster  speeds  than  the  traditional  Plain  Old 
Telephone Service or analog service. There are two types of lines which provide access to ISDN, Basic Rate Interface 
(BRI)  and  Primary  Rate  Interface  (PRI).  BRI  provides  two  bearer  or  B  channels  and  one  signaling  or  D  channel.  PRI 
provides 23 B channels and one D channel in the U.S. and 30 B channels and one D channel in Europe.
Jitter  -  The  variability  in  packet  arrival  at  the  destination.  When  consecutive  voice  packets  arrive  at  irregular 
intervals, the result is a distortion in sound, which if severe, can make the speaker unintelligible.
Key Telephone  System  (KTS)  -  Phone  devices  with  multiple  buttons  that  let  you  select  incoming  or  outgoing  CO 
phone lines directly. Similar to a PBX, except with a KTS you don’t have to dial a “9” for a call outside the building.
LAN  (Local  Area  Network)  -  Two  or  more  computers  linked  together  in  a  contained  location;  such  as  an  offi ce 
building, allowing users to share fi les and access to printers.
Latency - Average “travel” time it takes for a packet to pass through a network. The lower the latency, the better the 
voice quality.
Leased Lines - Dedicated common-carrier facilities and channel equipment used by a network to furnish exclusive 
private line service. Also called a leased circuit.
Packet  -  A  sequence  of  binary  digits,  including  data  and  control  signals,  that  is  transmitted  and  switched  as  a 
composite whole.
Packet-switched Network - A method of transferring information in which data is broken into small pieces, called 
packets, and transported over shared communications channels.
PBX (Private Branch Exchange) - A phone exchange located on the customer’s premises. The PBX provides a circuit 
switching facility for phone extension lines within the building, and access to the PSTN.
POTS (Plain Old Telephone Service) - The basic analog phone service consisting of standard telephones, telephone 
lines, and access to the public switched network.
PSTN - The public switched telephone network that traditionally routes voice calls from one location to another.
QoS (Quality of Service) - Refers to the measure of service quality provided to the user.
Router - A device that connects two networks using the same networking protocol. 
Silence  Suppression/Voice Activation  Detection  -  In Voice  over  IP,    silence  suppression/voice  activation  detection 
(VAD) is a software application that allows a data network carrying voice traffi c over an Internet/intranet connection 
to detect the absence of audio and conserve bandwidth by preventing the transmission of “silent packets” over the 
network. 
SIP (Session Initiation Protocol) - A signaling protocol for setting up conferencing, telephony, multimedia and other 
types of communication sessions over the Internet.
SNMP (Simple Network Management Protocol) - The TCP/IP standard protocol that is used to manage and control 
IP gateways and the networks to which they are attached.
Static IP Address - An IP address that is permanently assigned to a network device by an ISP.
Subnet Mask - A mask used to determine what subnet an IP address belongs to. 
						

							Copyright © 2003 Multi-Tech Systems, Inc.  All rights reserved.
Telnet - The TCP/IP standard network virtual terminal protocol that is used for remote terminal connection service 
and that also allows a user at one site to interact with systems at other sites as if that user terminal were directly 
connected to computers at those sites.
T1  - A  high-speed  (1.544M  bps)  digital  telephone  line  with  the  equivalent  of  24  individual  64K  bps  channels  time 
division multiplexed together. A T1 can be used to transmit voice or data, and many are used to provide connections 
to the Internet.
Tie Line - A dedicated circuit linking two points without having to dial a phone number (i.e. the line may be accessed 
by lifting the phone handset or by pushing a button).
Trunk - Service that allows quasi-transparent connections between two PBXs, a PBX and a local extension, or some 
other combination of telephony interfaces to be permanently conferenced together by the session application and 
signaling passed transparently through the IP network.
Vocoder  (voice  encoder/decoder)  -  Provides  multiple  voice  compression  standards  which  range  from  G.723  (5.3K 
bps)  to  G.711  (full,  uncompressed  64K  bps).  These  standards  are  used  to  minimize  the  bandwidth  required  for 
voice.
VOIP  (Voice  over  Internet  Protocol)  - The  technology  that  turns  voice  conversations  into  data  packets  and  sends 
them out over a packet-switched Internet protocol (IP) network.
VPN (Virtual Private Network) - A private network that utilizes dedicated equipment and large-scale encryption to 
connect remote sites or users together over the public Internet.
WAN (Wide Area Network) - The result of the connection of two or more LANs.
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Trademarks: MultiVOIP, MultiVOIPManager, MultiVOIP Gatekeeper, Multi-Tech, and the Multi-Tech logo: Multi-Tech Systems, Inc. 
All other products or technologies are the trademarks or registered trademarks of their respective holders. 
						

							Copyright © 2003 Multi-Tech Systems, Inc.  All rights reserved.24
Notes 
						

							Copyright © 2003 Multi-Tech Systems, Inc.  All rights reserved.
MultiVOIP Voice Over IP 
Confi guration Guide
Headquarters Location:
City:                                      State/Prov.:              Country:                                             No. of remote locations           
1.Confi gure Number of Ports Needed:MultiVOIP Model:
A.Total monthly long distance bill:                   (Results from Line D = # of ports)
B.% intra-offi ce communication:                   rMVP130 (1 port)
(if unknown, the rule of thumb is 30%)   rMVP210 (< 2 ports)
C.Number of outside phone lines:                   rMVP410 (< 4 ports)
D.Total VOIP ports needed: (line B x line C)                   rMVP810 (< 8 ports)
E.Total monthly savings: (line A x line B)                   rMVP2410/MVP3010 (> 16 ports)
2.Bandwidth Needed:3.Return on Investment:
F.Voice Bandwidth: (line D x 14K)                   H.MultiVOIP cost:                 
G.Total Bandwidth: (line F x 2)                   I.No. of months for payback 
     (line H / line E)                  
     
Branch Offi ce Location:
City:                                                      State/Prov.:                  Country:                                     
1.Confi gure Number of Ports Needed:MultiVOIP Model:
A.Total monthly long distance bill:                   (Results from Line D = # of ports)
B.% intra-offi ce communication:                   rMVP130 (1 port)
(if unknown, the rule of thumb is 30%)   rMVP210 (< 2 ports)
C.Number of outside phone lines:                   rMVP410 (< 4 ports)
D.Total VOIP ports needed: (line B x line C)                   rMVP810 (< 8 ports)
E.Total monthly savings: (line A x line B)                   rMVP2410/MVP3010 (> 16 ports)
2.Bandwidth Needed:3.Return on Investment:
F.Voice Bandwidth: (line D x 14K)                   H.MultiVOIP cost:                 
G.Total Bandwidth: (line F x 2)                   I.No. of months for payback 
     (line H / line E)                  
Branch Offi ce Location:
City:                                                      State/Prov.:                  Country:                                     
1.Confi gure Number of Ports Needed:MultiVOIP Model:
A.Total monthly long distance bill:                   (Results from Line D = # of ports)
B.% intra-offi ce communication:                   rMVP130 (1 port)
(if unknown, the rule of thumb is 30%)   rMVP210 (< 2 ports)
C.Number of outside phone lines:                   rMVP410 (< 4 ports)
D.Total VOIP ports needed: (line B x line C)                   rMVP810 (< 8 ports)
E.Total monthly savings: (line A x line B)                   rMVP2410/MVP3010 (> 16 ports)
2.Bandwidth Needed:3.Return on Investment:
F.Voice Bandwidth: (line D x 14K)                   H.MultiVOIP cost:                 
G.Total Bandwidth: (line F x 2)                   I.No. of months for payback 
      (line H / line E)                  
25 
						

							Copyright © 2003 Multi-Tech Systems, Inc.  All rights reserved.
Branch Offi ce Location:
City:                                                      State/Prov.:                  Country:                                     
1.Confi gure Number of Ports Needed:MultiVOIP Model:
A.Total monthly long distance bill:                   (Results from Line D = # of ports)
B.% intra-offi ce communication:                   rMVP130 (1 port)
(if unknown, the rule of thumb is 30%)   rMVP210 (< 2 ports)
C.Number of outside phone lines:                   rMVP410 (< 4 ports)
D.Total VOIP ports needed: (line B x line C)                   rMVP810 (< 8 ports)
E.Total monthly savings: (line A x line B)                   rMVP2410/MVP3010 (> 16 ports)
2.Bandwidth Needed:3.Return on Investment:
F.Voice Bandwidth: (line D x 14K)                   H.MultiVOIP cost:                 
G.Total Bandwidth: (line F x 2)                   I.No. of months for payback 
     (line H / line E)                  
Branch Offi ce Location:
City:                                                      State/Prov.:                  Country:                                     
1.Confi gure Number of Ports Needed:MultiVOIP Model:
A.Total monthly long distance bill:                   (Results from Line D = # of ports)
B.% intra-offi ce communication:                   rMVP130 (1 port)
(if unknown, the rule of thumb is 30%)   rMVP210 (< 2 ports)
C.Number of outside phone lines:                   rMVP410 (< 4 ports)
D.Total VOIP ports needed: (line B x line C)                   rMVP810 (< 8 ports)
E.Total monthly savings: (line A x line B)                   rMVP2410/MVP3010 (> 16 ports)
2.Bandwidth Needed:3.Return on Investment:
F.Voice Bandwidth: (line D x 14K)                   H.MultiVOIP cost:                 
G.Total Bandwidth: (line F x 2)                   I.No. of months for payback 
      (line H / line E)                  
Branch Offi ce Location:
City:                                                      State/Prov.:                  Country:                                     
1.Confi gure Number of Ports Needed:MultiVOIP Model:
A.Total monthly long distance bill:                   (Results from Line D = # of ports)
B.% intra-offi ce communication:                   rMVP130 (1 port)
(if unknown, the rule of thumb is 30%)   rMVP210 (< 2 ports)
C.Number of outside phone lines:                   rMVP410 (< 4 ports)
D.Total VOIP ports needed: (line B x line C)                   rMVP810 (< 8 ports)
E.Total monthly savings: (line A x line B)                   rMVP2410/MVP3010 (> 16 ports)
2.Bandwidth Needed:3.Return on Investment:
F.Voice Bandwidth: (line D x 14K)                   H.MultiVOIP cost:                 
G.Total Bandwidth: (line F x 2)                   I.No. of months for payback 
      (line H / line E)                  
26