Network Setup Recommendations

Dialpad is a cloud-based business phone system that allows you to make and receive calls from anywhere in the world, as well as manage contacts, get call logs and voicemails, transfer calls, and more.

We know you are on the move, and we're pleased to confirm that Dialpad is operable on any device with a reliable internet connection!

Let's dive into the details of network settings, to set you up for success.

Bandwidth Calculations

To ensure the best possible voice quality, we recommend using either any high-speed DSL, Broadband, or Fiber-optic connection.  With a minimum dedicated upload and download bandwidth of 100 kilobits/sec for each voice line, you plan to run.

Routers, Switches, and Firewalls

Dialpad does not require a specific brand or mode router, switch or firewall — however, to achieve the best possible quality of service, the Network hardware should have the following capabilities:

  • QoS
  • Bandwidth Limiting
  • SNMP

We also require that the following features to be turned off for Dialpad traffic (as they can interfere with the service). Please contact our Support Team if you are unable to turn off these features:

  • SIP-ALG
  • Deep Packet Inspection (DPI)
  • Stateful Packet Inspection (SPI)

VPN

Dialpad is not designed to function over a VPN. If your company uses a VPN, please utilize a split tunnel and direct Dialpad traffic outside of the VPN. 

VLAN

A virtual LAN (VLAN) can be used to put your hard-wired phone devices into separate networks, and to manage security and routing policies separately. If you plan to deploy IP phones, they can be placed in a "voice VLAN".

A voice VLAN is not a network requirement for Dialpad service but best practices for setting security, DHCP, routing, QoS/CoS a voice VLAN may be used.

FQDNs

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 managing:

  • Registrations
  • SIP requests to set up a call
  • Device Firmware
  • Device Configurations
  • Remote Devices

Dialpad recommends allowing traffic to and from each of the following FQDNs:

  • dialpad.com
  • www.obitalk.com
  • www1.obitalk.com
  • prov.obitalk.com
  • devpfs.obitalk.com
  • storage.googleapis.com
  • ubervoice.ubervoip.net
  • turn.ubervoip.net
  • stun.l.google.com
  • uvwss.ubervoip.net
  • legacy.dialpad.com
  • dialpadcdn.com
  • static.dialpadcdn.com
  • prov*.dialpad.com
  • google-public-dns-a.google.com
  • google-public-dns-b.google.com
  • *pusher.com
  • *googleusercontent.com

Ports & Protocols

Port and protocols used by Dialpad phones and applications residing in a private network are listed below. Outbound port configurations are needed on the firewall to allow traffic to the destination ports listed in the right-hand side column of the tables. Stateful firewalls are recommended for Dialpad deployments. For a stateful firewall, inbound port configurations are not needed as they are automatically opened as a reply to the outbound traffic.

Desktop Native, Mobile, & Browser Applications

Traffic Type  Protocol Domain Port 
Product features (images, social profiles etc)  HTTPS (TCP)

*.dialpad.com

*.dialpadcdn.com

443
Messaging HTTPS (TCP)
WSS (TCP)
*.dialpad.com
*.ubervoip.net
*.pusher.com
443
Call Signaling WSS (TCP)
SIP/TLS (TCP)
*.dialpad.com
*.ubervoip.net
443, 5061
Call Media SRTP (UDP)   16384 to 32768
STUN UDP stun.l.google.com 19301 to 19302
TURN UDP and TCP turn.ubervoip.net  443
Server Discovery DNS (SRV records)

google-public-dns-a.google.com

google-public-dns-b.google.com

53

 

Poly Desk Phones (Obi-Edition & UCS)

Traffic Type  Protocol Domain Port 
Provisioning  HTTPS (TCP)

*.dialpad.com

443
Call Signaling SIP/TLS (TCP) *.dialpad.com
*.ubervoip.net
5061
Call Media STRP (UDP)   16384 to 32768
Poly Device Management System (PDMS) TCP/UDP  *.obihai.com
*.obitalk.com
*.polycom.com 
443, 10000 to 20000
Firmware Downloads  TCP *.dialpad.com
downloads.polycom.com
storage.googleapis.com 
80, 443
Network Time Service  NTP (UDP) pool.ntp.org 123

Unsupported configurations

Dialpad does not support using our services through any of the following tools:

  • Virtual Machines (VMs)
  • Virtual Desktop Interfaces (VDIs)
  • Remote Desktop Clients (RDPs)

For running the network tests, please follow the instructions noted on this Help Center article. 

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