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VoIP FAQs for Techs

FAQs related to VoIP set up and issues for technicians

How do I find the IP address of my phone?
  1. On the Home screen of your Polycom phone, navigate to Settings
  2. Select Status
  3. Select Network
  4. Select TCP/IP Parameters

IP address is your IPv4 Address
Gateway is your IPv4 Gateway

How do I find the MAC address of my phone?

 

  1. On the Home screen of your Polycom phone, navigate to Settings
  2. Select Status
  3. Select Network
  4. Select Ethernet
Does using a Virtual Private Network (VPN) affect the call quality of my desktop application?

The VPN will affect the quality of service, since it goes through an additional set of routers. Dropping the VPN connection in the middle of an active call will cause the call session to be dropped for security reasons.

Which switches should we have for VoIP?
ITS is currently using HP 5130 PoE switches to connect the VoIP phones. These switches are LLDP/PoE enabled for the voice VLAN feature.
There are two modes we can look into:
·         if every user has a dedicated network port to connect a VoIP phone, you can configure each switch port as an access port (untagged VLAN)
·         if users only have single network drop, the pass-through port will be used to connect a computer. We will configure a switch port to be hybrid mode to enable the voice VLAN feature via LLDP.
For switches not supporting LLDP, VLAN discovery mode is an alternative; however, without DHCP server, the VLAN discovery mode will not work. You may refer to this thread in the Polycom Community support discussion board for more information: