<div>
But those options can be configured on the DHCP server like Windows Server for example. Correct?<br />
I will have to specify those options if I configure my router as a DHCP server. Correct?<br />
<br />
I will be using NEC VoIP phones itl-8ld-1 dt730. Do you know if they mark the traffic automatically. I could not find any document on how to configure the Cisco switch with NEC VoIP phones. Thanks
</div>


<div>
NEC phones use 802.1q trunking. But I am not sure if they mark the packet with dscp or cos.
</div>


<div>
That would be a question for NEC, however, you could have the switch mark the traffic on the ingress port.
</div>


<div>
I assume that the phone marks the packet and my switch just trust dscp or cos. That's how the Cisco phone works.
</div>


<div>
I would assume the same thing.. &nbsp;I do know several years ago that one of the manufacturers did not have their stuff marked but that was a long time ago.
</div>


<div>
<div class="content wysiwyg-content">
Can sombody help me to understand the option feature in the dhcp pool configuration for VoIP (see sample below)?<br />
<br />
ip dhcp pool Data<br />
&nbsp; &nbsp;network x.x.x.x 255.255.255.0<br />
&nbsp; &nbsp;default-router x.x.x.1<br />
&nbsp; &nbsp;dns-server x.x.x.x y.y.y.y.y<br />
&nbsp; &nbsp;option 242 ascii L2Q=1,L2QVLAN=5<br />
&nbsp; &nbsp;option 176 ascii L2Q=1,L2QVLAN=5<br />
!<br />
ip dhcp pool VoIP<br />
&nbsp; &nbsp;network x.x.x.x 255.255.255.0<br />
&nbsp; &nbsp;default-router x.x.x.1<br />
&nbsp; &nbsp;option 242 ascii MCIPADD=x.x.x.x,x,x,x,x,MC<wbr />PORT=1719,<wbr />HTTPSRVR=x<wbr />.x.x.x,TFT<wbr />PSRVR=x.x.<wbr />x.x,VLANTE<wbr />ST=0<br />
&nbsp; &nbsp;option 176 ascii MCIPADD=x.x.x.x,x,x,x,x,MC<wbr />PORT=1719,<wbr />HTTPSRVR=x<wbr />.x.x.x,TFT<wbr />PSRVR=x.x.<wbr />x.x,VLANTE<wbr />ST=0
</div>
</div>


Can sombody help me to understand the option feature in the dhcp pool configuration for VoIP (see sample below)?

ip dhcp pool Data
   network x.x.x.x 255.255.255.0
   default-router x.x.x.1
   dns-server x.x.x.x y.y.y.y.y
   option 242 ascii L2Q=1,L2QVLAN=5
   option 176 ascii L2Q=1,L2QVLAN=5
!
ip dhcp pool VoIP
   network x.x.x.x 255.255.255.0
   default-router x.x.x.1
   option 242 ascii MCIPADD=x.x.x.x,x,x,x,x,MCPORT=1719,HTTPSRVR=x.x.x.x,TFTPSRVR=x.x.x.x,VLANTEST=0
   option 176 ascii MCIPADD=x.x.x.x,x,x,x,x,MCPORT=1719,HTTPSRVR=x.x.x.x,TFTPSRVR=x.x.x.x,VLANTEST=0

VoIP dhcp option

IP telephony (Internet Protocol telephony) is a general term for the technologies that use the Internet Protocol's packet-switched connections to exchange voice, fax, and other forms of information that have traditionally been carried over the dedicated circuit-switched connections of the public switched telephone network (PSTN). Using the Internet, calls travel as packets of data on shared lines, avoiding the tolls of the PSTN. The challenge in IP telephony is to deliver the voice, fax, or video packets in a dependable flow to the user.

IP Telephony

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.

Networking

Network design and methodology, also known as network architecture, is the design of a communication network. It is a framework for the specification of a network's physical components and their functional organization and configuration, its operational principles and procedures, as well as data formats used in its operation. In telecommunication, the specification of a network architecture may also include a detailed description of products and services delivered via a communications network, as well as detailed rate and billing structures under which services are compensated.