Service Titan Knowledge Base

Phones Pro network recommendations and setupLast updated on 03/22/2022

Learn about your recommended network options and which one to use for Phones Pro.

Things to know

  • Dialpad does not support virtual private networks (VPNs). If your company uses a VPN, set up a split tunnel and direct Dialpad traffic outside of the VPN.

  • You can use a virtual LAN (VLAN) for managing security and routing policies. You can also use a voice VLAN for security purposes. Note: You are required to set up a voice VLAN when workstations are linked together through IP phones.

  • For better voice quality, we recommend using either a high-speed DSL, cable, or fiber-optic connection with dedicated upload and download bandwidth for the voice of at least 100 kilobits/second for each voice line you plan to run.

Set wired connections

Wired connections provide the best quality experience. Your network should use cabling that meets the network speed specifications.

Set wireless connections

If you use a wireless connection, be aware of the following issues:

  • Physical obstructions

  • Channel congestion

  • Electromagnetic interference

  • Multiple Wi-Fi bandwidth frequencies

  • Type of frequency for wifi connection

Router options

Phones Pro supports network routers, switches, and firewalls. Make sure your network hardware supports the following features:

  • Quality of service (QoS)

  • Bandwidth limiting

  • Simple Network Management Protocol (SNMP)

We recommend turning off the following features:

  • Session Initiation Protocol Application Layer Gateway (SIP-ALG)

  • Deep Packet Inspection (DPI)

  • Stateful Packet Inspection (SPI)

Enable QoS

For supported routers, you can configure QoS settings based on:

  • Application (RTP/SIP)

  • Application and port (RTP over UDP)

  • Destination port

  • Combination of the options listed above


Routing to a Fully Qualified Domain Name (FQDN) allows modern Cloud Networks flexibility for Routing, Security, System Maintenance, and remote Device management.

Dialpad uses FQDNs for:

  • Registration

  • Exchanging SIP to set up a call

  • Managing Device Firmware

  • Managing Device Configurations

  • Managing Devices remotely

Dialpad recommends the following FQDN:














  • prov*

Note: You can view Dialpad's traffic flagged with Differentiated Services Code Point (DSCP) markings (for example, DSCP 46 = RTP Traffic).

Ports and protocols

See the list below for recommended ports and portals:

Desktop native, mobile, and browser applications:

Poly desk phones (Obi-Edition and UCS):

Open ports

Use the following ports to exchange data, register, and exchange media with Dialpad servers:

Open the following ports for Obihai and SIP Phones:

Note: If you have outbound port restrictions, make sure you have Port 10000 to 20000 open under Protocol UDP/TCP.

Want to learn more?

Important note: Some features may not be currently included in your account and additional configuration may be required. Please contact technical support for details.

Disclaimer: Information provided in this article is for informational purposes only and it should not be construed to be legal advice. Information provided in this article may also not constitute the most up-to-date legal or other information. You should not act or refrain from acting on the basis of any information in this article to meet any compliance requirements without seeking independent legal or other professional advice.