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Netgear makes good qualty stuff ,but what's the rest of the infrastructure look like in terms of networking gear?<br />
Do you need POE?
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As long as the uplink ports are not saturated, the VoIP calls will not have issues. &nbsp;This is LAN. &nbsp;There's no way 5 phones could even saturate a 100Mbps port.<br />
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That's assuming the switch is actually a switch (not a &nbsp;hub), and that's it's wire-speed. &nbsp;In older switches, we had to look at backplane bandwith and pps (packets per second) forwarding speed. &nbsp;Often, the switch could not keep up with multiple 100Mbps saturated ports. &nbsp;Or sometimes, couldn't manage more than 200-300Mbps on a gigabit port.<br />
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If this is a new switch, it really shouldn't be that much of a problem.<br />
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Do you have multiple switches cascaded? &nbsp;Or just a single 5-port switch for the entire LAN?
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We have a small 5 port GB switch between our LAN and phone system. My phone tech did some troubleshooting on an issue we were having the other day, when I asked him if he can see anything else that I should be concern with he told me the small 5 port switch was not VOIP grade and that I should replace it. I asked him for a recommendation his response is to replace it with a Netgear GS 108T.<br />
Any suggestions are appreciated
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We have a small 5 port GB switch between our LAN and phone system. My phone tech did some troubleshooting on an issue we were having the other day, when I asked him if he can see anything else that I should be concern with he told me the small 5 port switch was not VOIP grade and that I should replace it. I asked him for a recommendation his response is to replace it with a Netgear GS 108T.
Any suggestions are appreciated

VOIP grade small switch

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

A switch is a device that filters and forwards packets of data between LAN segments. Switches operate at the data link layer or the network layer of the Open Systems Interconnection (OSI) Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs. A hub is a connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports; when a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.

Switches / Hubs

Networking hardware includes the physical devices facilitating the use of a computer network. Typically, networking hardware includes gateways, routers, network bridges, modems, wireless access points, networking cables, line drivers, switches, hubs, and repeaters. But it also includes hybrid network devices such as multilayer switches, protocol converters, bridge routers, proxy servers, firewalls, network address translators, multiplexers, network interface controllers, wireless network interface controllers, ISDN terminal adapters and other related hardware.