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depends on the phones and firmware you're running on them. The vast majority will not though. the 802.1x authentication is your best bet. what equipment are you using? switches and phones. 
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depends on the phones and firmware you're running on them. The vast majority will not though. the 802.1x authentication is your best bet. what equipment are you using? switches and phones.

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3750 PoE and 7940s, nothing fancy on the phones.<br />
<br />
I did find this on cisco's site and it mentions port security over trunk ports. Didn't know I could do that...<br />
<br />
<a href="http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/25sg/configuration/guide/port_sec.pdf" rel="ugc">http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/25sg/configuration/guide/port_sec.pdf</a><br />
<br />
I realize that doc is for a 4500. It should work for 3750s with latest IOS also?
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3750 PoE and 7940s, nothing fancy on the phones.

I did find this on cisco's site and it mentions port security over trunk ports. Didn't know I could do that...

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/25sg/configuration/guide/port_sec.pdf [http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/25sg/configuration/guide/port_sec.pdf]

I realize that doc is for a 4500. It should work for 3750s with latest IOS also?

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That about covers it. Thanks for your help!
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That about covers it. Thanks for your help!

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<div class="content wysiwyg-content">
We are getting ready to roll out VoIP using all Cisco equipment. Some office only have 1 data run. We currently use Port-Security to prevent unauthorized devices. Since we will have seperate voice and data vlans, we would have to trunk on that port. Port security is not applicable for trunk ports. We are not ready to roll out 802.1x port authentication. are there any options on the phones to restrict what PCs can be plugged into it's switchports?<br />
<br />
Thanks!
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We are getting ready to roll out VoIP using all Cisco equipment. Some office only have 1 data run. We currently use Port-Security to prevent unauthorized devices. Since we will have seperate voice and data vlans, we would have to trunk on that port. Port security is not applicable for trunk ports. We are not ready to roll out 802.1x port authentication. are there any options on the phones to restrict what PCs can be plugged into it's switchports?

Thanks!

Voip switchport security regarding port-security

Voice over IP (VoIP) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, broadband telephony, and broadband phone service. The term specifically refers to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the public Internet, rather than via the public switched telephone network (PSTN).  Examples of the VoIP protocols are H.323, Media Gateway Control Protocol (MGCP), Session Initiation Protocol (SIP), H.248 (also known as Media Gateway Control (Megaco)), Real-time Transport Protocol (RTP), Real-time Transport Control Protocol (RTCP), Secure Real-time Transport Protocol (SRTP), Session Description Protocol (SDP), and Inter-Asterisk eXchange (IAX).

Voice Over IP

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

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.