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Phones

Setup

You can connect Zuthree Manager with your phones in two ways: through DHCP auto-discovery or by manually configuring your phones. In either case, you’ll need to know the IP address of the machine running Zuthree Manager.

To check IP address, run:

Terminal window
ip a

and find the inet of eth0. In the example below, the IP address is 192.168.0.101.

Terminal window
$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 00:0x:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
    altname enp2s0
    altname ens32
    inet 192.168.0.101/24 brd 192.168.44.255 scope global eth0
       valid_lft forever preferred_lft forever

DHCP auto-discovery (Option 66)

To use auto-discovery of a tftp server you can use option 66 which specifies Boot Server Address, that allows you to specify a server to provision your desk phone from.

Each Router has it’s own naming nomenclature for this option. For example, Unifi uses just TFTP Server under: Networks > Network Name > DHCP > DHCP Server Management > TFTP Server

Check your router documentation and specification for more detils on your own device.

Manual configuration

Set the alternative TFTP server address on your Cisco phone.

  1. Press the cog button on your phone to open the options menu.
  2. Go to “Admin settings”.
  3. Go to “Ethernet setup”.
  4. Go to “IPv4 setup”.
  5. Scroll down to “Alternate TFTP” and enable it.
  6. In “TFTP server 1”, enter the IP address of the machine running Zuthree Manager.
  7. Apply the changes.
  8. Restart your phone by either disconnecting and reconnecting the power cable or navigating to “Admin Settings” -> “Reset Settings” -> “Reset device”.