IP FAQs

How do I connect to a specific VoIP product on the LAN or WAN?
VoIP network devices convert dialed numbers into an IP address and transmits it over the IP network. Simply dial a dial code that you programmed, and you are connected to specific intercom stations, handsets and paging speakers. You may also dial group numbers and/or all call paging zones.

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How does a Ringdown application circuit work?
When using Ringdown it is not necessary to dial any digits. Merely go offhook with intercom station or telephone handsets and connection is automatically established through the LAN or WAN. Ringdown communications are either point to point or point to multi-point.

Is there any voice delay?
Any delay usually occurs when there are an excessive number of router hops. Valcom testing has demonstrated that in most typical LAN / WAN applications there is little delay to affect reliable operation.

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How is the voice quality?
In order to operate efficiently, voice is digitized and then transmitted. High quality voice transmission speech encoding/decoding conforms to industry standards, which assures natural sounding speech rivaling that of traditional wired systems.

How are messages transmitted?
Fax signals are transmitted using conversion to IP packets, then routed over the network. ;FAX transmissions are handled in the same manner as voice calls.

Is there any possibility of voice IP packets being discarded or lost?
A voice packet is transmitted by UDP/IP. When there is network congestion, packets may be lost. It is suggested that routers with a priority control function be used in VoIP networks.

How do I set up VoIP products to operate on the network once preliminary installation is accomplished?
All VoIP products are provided with an easy setup network programming tool. Simply plug in all VoIP products to existing LAN or WAN connections then use programming tool from any PC on the network to setup. Tool provides automatic detection of Valcom VoIP products and configures them for customer applications. Once setup IP products function stand alone without the use of the program tool.

What is the size of a voice packet?
A voice packet is composed to 244 bytes of voice and control data along with 24 bytes of IP overhead for a total of 268 bytes.

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What bandwidths are necessary for voice and fax transmissions?
Bandwidth required is approximately 86 kbps in each direction.; Two-way calls would require approximately 172 kbps.

Will VoIP products operate if the network servers go down?
As long as the routers and hubs are operational Valcom VoIP products continue to operate. They do not require the servers to be operational in order to function as intended.

Do VoIP solutions require dedicated wiring for operation?
Valcom IP products connect to the nearest network drop in any building or location. Connections are typically made in network cabling closets or device drops found in any area of the building. There is no need to run dedicated new wiring for operation. Remember that a VoIP product is required to send the signal into the network, at the remote location another VoIP product is required to receive it. Valcom VoIP solutions eliminate wiring by using the existing data infrastructure to connect buildings in multi building campus environments; or facility wide across town, across the state or around the world.

How do I connect a handset to my network for point to point voice communications?
The VIP-811 Networked Station Port Gateway is used to connect any analog telephone to the nearest network drop. Ringdown operation provides call routing to the location were the call is to be answered. Multiple VIP811s can be associated with a single receiving point. Calls may be initiated from master telephone station by dialing the remote dial code.

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How do I connect an intercom Door Phone station through my data network?
Intercom station operation is provided using the VIP-810 Networked Station Port Gateway. Simply wire new remote station to nearest network connection point. Ringdown operation connects calling party to appropriate responding master station. Multiple Doorphone stations can be placed throughout the facility all reporting to a single receiving destination. Master telephone station can call any remote intercom station using its configured dial code.

Can DoorPhone Intercom stations be used indoors and outdoors?
Valcom VIP-172L-VR is designed to be rugged and reliable. Their weather-resistant construction makes them ideal for outdoor installations. Used indoors for assistance call-in stations they provide a durable finish resistant to commercial use.

What VoIP solution is used to support new building paging applications?
The VIP-801 Networked Page Port Gateway is the product used when one way paging is required. It can connect both Valcom traditional powered speakers and constant voltage speakers using 25 and 70 volt amplifiers. One VIP-801 is required for each building or specific zone. Application may be specified for all call or zone paging.

I want a campus emergency paging system to provide facility wide all call and zone paging; what products should I buy?
At the master paging location use a VIP-811 Networked Station Port Gateway with a telephone handset, at each remote building or zone use a VIP-801 Networked Page Port Adapter. Use appropriate paging speakers throughout the buildings to provide required coverage. If you want to access specific building or zones + all call paging use a telephone with dial pad at master paging location. To page a building dial specific dial code for that building or area. To dial all buildings or zones dial Group Call for All Call.

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Will Valcom VoIP Solutions bog down my network when they are in operation?
Valcom products use very little bandwidth while providing excellent voice quality. Our testing has proven that our products have negligible impact to network operations.

I have an remote existing building with a conventional 70 volt paging system, I would like to tie it in for facility wide all call; What product should I use?
A VIP-801 Networked Station Port Gateway will support conventional paging system that has been previously installed. The output of the VIP-801 is tied into the input of the remote amplifier for operation. A contact closure is also provided to provide local muting or relay operation if required. Remember that another VIP-801 will be required at main paging location to transmit remote paging signal through the network.

How can I install a remote paging microphone without having to pull new wiring from our main location?
Use a VIP-811 Networked Station Port Adapter and connect paging telephone station to nearest network drop closest to the required location. You do not have to wire device all the way back to main paging location. Let your data network provide the connection points. Remember that another VIP801 will be required at the main paging location to receive the signal from the new remote microphone location.

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I want to tie two remote PBX’s together to eliminate leased line charges; what products do I need?
The VIP-821 Networked Trunk Port Module makes it a snap to connect two or more PBX systems over the LAN or WAN. It provides station to station PBX access eliminating the need for more expensive trunk connections that may be typically required by other providers.

Can I install VoIP solutions myself without having to hire an electrical contractor?
Valcom VoIP Solutions have been designed for easy installation by users and contractors who have a basic knowledge of networks and low voltage wiring techniques. Valcom products are easy to understand and are shipped with complete documentation that provides simple step by step procedures. Valcom paging accessories are installed with common tools and operate with power limited power supplies using conventional twisted pair cabling topologies.

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