Starplus Triad Xts Digital Key Telephone System System Programming And Operation Manual

D
Voice Over the Internet
Protocol
This chapter contains detailed information about Voice Over the Internet Protocol. 












 
 
 
 
 
 

Product DescriptionD-3
Appendix D - Voice Over the Internet Protocol
Product Description
The Discovery Voice Over the Internet Protocol (VoIP) printed circuit board (PCB) is for use on 
Vodavi XTS key service units (KSUs), that includes the Vodavi telephone systems. It provides 
an Ethernet interface to connect the KSU to an Internet Protocol (IP) network. The latest in 
voice processing protocols and hardware technologies are used to provide the highest 
quality voice over an IP network. In addition to...

D-4Specifications
Appendix D - Voice Over the Internet Protocol
Specifications
The Discovery VoIP card uses Transmission Control Protocol/Internet Protocol (TCP/IP) for 
packet delivery over an IP network. Additional standards and protocols are used to provide 
DTMF, voice processing, and compression.
The Discovery VoIP card can accommodate up to four Discovery VoIP modules. Each Discovery 
VoIP module provides capability for two ports, resulting in a maximum of eight ports when all 
four modules are...

InstallationD-5
Appendix D - Voice Over the Internet Protocol
Installation
Multiple connection types can be used to implement the Discovery VoIP card in the business 
environment. The speed of a network connection is measured in bandwidth or kilobytes per 
second (K or kbs). Business connections generally have a speed of 256K or greater. In 
comparison, a home user dialing into the Internet with a modem can reach a maximum 
speed of 56K.
The two main types of connections are managed and unmanaged. A...

D-6Installation
Appendix D - Voice Over the Internet Protocol
Te c h n i c a l  D a t a
Lower bandwidths, lower connection reliability, and high network latency will decrease 
Discovery VoIP performance. Bandwidths lower than 256K and network latency higher than 
120 ms may cause unacceptable performance. Intermittent fluctuating connections (i.e., 
some wireless broadband connections) will cause unacceptable performance problems. 
Have your network administrator check your network performance and...

InstallationD-7
Appendix D - Voice Over the Internet Protocol
The following chart shows the bandwidth consumption by vocoder.
Figure D-1: Bandwidth Consumption by Vocoder
IP Phones
IP phones using the H.323 Revision 2 protocol will work with the Discovery VoIP card. The IP 
phone, however, will not be integrated into the system. Instead, the IP phone resembles a 
single-line telephone that uses the Internet or other IP network instead of the PSTN. IP 
phones allow dialing using the IP address of the...

D-8Programming
Appendix D - Voice Over the Internet Protocol
Quick Start
This quick-reference diagram shows the configuration necessary to connect the Discovery 
VoIP card to the Internet, WAN network, or VPN network:
Figure D-2: Discovery VoIP Card Connection Diagram
Programming
The following Table shows the Network programming requirements.
 
Table D-2: VoIP Card Network Programming Requirements
Requirement Description
IP Address(es) An IP Address is required to properly program a 
Discovery Vo IP c...

ProgrammingD-9
Appendix D - Voice Over the Internet Protocol
Identifying the VoIP Card (FLASH 24)
The Discovery VoIP card can be placed in slots 1-7 of Cabinet 0 and in slots 0-8 of Cabinet 1 
and Cabinet 2. Once the slot is identified, it takes the required time slots and deducts them 
from the available ones. It activates all 8 circuits. If more then one card is identified, each card 
is identified in the same manner and it requires its own unique IP address.
1. While in the programming mode, dial...

D-10Programming
Appendix D - Voice Over the Internet Protocol
4. Press Button #2, enter Subnet Mask, then press HOLD to save the entry.
A Subnet Mask of 255.255.255.0 is entered as 255255255 + [HOLD]; the telephone will 
display 255.255.255., which is correct.
5. Press Button #3, enter Router IP address, then press HOLD to save the entry.
6. Press Button #4, enter Domain Name (up to 64 characters), then press HOLD to save the 
entry.
The domain name is entered in standard Vodavi format:

The first number...