Switchvox - Phone Networks

Table of Contents

Phone Networks determine how a Sangoma Phone should behave, depending on the IP address and netmask of the Phone as it sits on the network. If the Phone cannot get on the network because it is trying in vain to use the wrong Phone Networks information, use the Phone's Select Network option to select the Phone Network that matches the network you want the phone to use.

The Phone Network screen lists all phone networks with their respective information. Three actions are available for each entry: display Details, Modify, and Delete. When creating a Phone Network, enter the following information, and click the Save Phone Network button when finished. This lists the network on the Phone Network screen. Modify options are the same as the Create options.

Open

Create Phone Network

Open

General Settings

• Name. A unique name for this network.

• Network. The IP address and Netmask of the network where Sangoma Phones could be located. This should be the IP address that the phone obtains and uses to identify itself on this network. For example, this might be a subnet in your office, or the IP address of a phone at an employee's home. (This is not a remote employee's external IP address, which you would use in an Access Control Rule.)

• Direct Port Access. Set to YES if the phone, while on this network, has access to these ports on Switchvox:

  • Port 80, for getting phone firmware. (If a remote phone cannot reach your Switchvox to get phone firmware, the phone will get the firmware from Sangoma's servers).

  • Port 443, for getting additional files and accessing Switchvox's API.

  • Port 5062, for getting configuration information.

    • Normally a phone just uses port 5060 for all of these activities and for handling calls. However, if set to YES, the phone uses those ports as indicated. This is useful because those protocols are better suited for those activities. That's why the default phone network Internal is set to YES.

• NTP Server. By default, Sangoma Phones use NTP to retrieve time settings. Unless you have a particular reason, do not change these settings.

Primary Host (PBX)

• Host Address. Switchvox’s IP address to be used by a Sangoma Phone located on this network. The default Phone Networks entries (Internal and All Networks) are automatically updated so that Host Address is the same as Switchvox's internal and external IP addresses in IP Configuration. However, if you make a change to Host Address in either one of the default entries, then changes you make in IP Configuration will not ever affect that entry.

Alternate Host

• Host Address. In the event that the Phone can no longer reach Switchvox at the PBX Address above, the Phone will register to this IP address. If this happens, the Phone will be in Failover Mode, and many of its Phone Applications will not be available. However, the phone should be able to make and receive calls over this alternate host.

• Port. Enter the port number. 5060 is the default port number.

• Transport. Select the transport protocol, UDP or TCP. UDP is the default.

Advanced Settings

To enter advanced settings, click the Advanced Settings button. This displays the following options:

Primary Host (PBX)

• Seconds until Re-registration. Enter the number of seconds until the phone re-registers to the host.

• Seconds until Retry on Failure. If the phone fails to register to the host, enter the number of seconds it should wait before it tries again.

Alternate Host

• Seconds until Re-registration. Enter the number of seconds until the phone re-registers to the alternate host.

• Seconds until Retry on Failure. If the phone fails to register to the alternate host, enter the number of seconds it should wait before it tries again.

Virtual LAN Settings

• Discovery Mode. Select one of these modes:

  • LLDP is the default. In this case, a Sangoma Phone uses LLDP to discover Virtual Local Area Network information. If the phone does not get a response from LLDP, it will assume that there is no VLAN. (VLAN information cannot be obtained via DHCP.)

  • Manual. Use to set a specific VLAN ID: lldp-med.policy.vlan.vid

  • None. Use if you do not want the phone to attempt to use LLDP, and you do not want the phone to use a specific VLAN ID.

• ID. Four-digit identifier for the VLAN if the VLAN discovery mode is Manual.

• Voice and SIP 802.1p Priority. You can set priority values here, but if LLDP returns specific values to the phone, the values entered here are ignored.

Quality of Service Settings

• Voice DSCP and SIP DSCP. You can set priority values here, but if LLDP returns specific values to the phone, the values entered here are ignored.

Miscellaneous Settings

• Enable UDP Persist-Connection. This setting allows the phone to Keep the NAT tunnel open by pinging the server on a regular interval

• UDP Persist - Connection Interval. Set the interval at which the phone will ping the server.

• Prefer DHCP Option 42 provided NTP. This can be changed to NO so that the phone will ignore Option42 DHCP-provided NTP servers. This setting does not apply to the D80 phone model.  Phone Networks are used by Sangoma's desk phones when they are attached to Switchvox.