Adjust Your Network – Dialpad

QoS

Enabling QoS will depend on your router and its capabilities. The following are general guidelines based on protocol and port, along with basic priority level (highest, high, low, etc.).

Some routers allow QoS to be set based on application (RTP/SIP), some allow based on application and port (RTP over UDP), some allow based on destination port, and some utilize a combination of any one of these. Dialpad's traffic is flagged with DSCP markings:

DSCP 46 = RTP Traffic
DSCP 26 = SIP Traffic

As a general rule of thumb, the more specific you can get the better as this will help eliminate erroneously flagging packets as high priority.

RTP Traffic (All HD Call [VoIP] endpoints)

Application: RTP/SRTP
Protocol: UDP
Destination Ports: 16384 - 32768
Priority: Highest

SIP Signaling (call setup, teardown)

Desktop Apps (Chrome, Mac Native, Windows Native)

Application: WSS
Protocol: TCP
Destination Ports: 443
Priority: High

Obihai

Application: SIP
Protocol: UDP or TCP
Destination Port: 7060 (UDP, TCP), 5061 (TLS)
Priority: High

Mobile HD Calls (VoIP)

Application: SIP
Protocol: TCP/TLS
Destination Port: 7060 (TCP), 443 (TLS), 5061 (TLS)
Priority: High

3rd Party SIP Phones (ex. Polycom)

Application: SIP
Protocol: UDP or TCP
Destination Port: 7060
Priority: High

Open Ports

Depending on the type of Dialpad clients (native app, Obihai, mobile) you plan to use on a given network, the ports that you’ll need to open will need to be adjusted.

Generally, Dialpad clients need to connect to our servers to:

Register
Exchange SIP to set up call
Exchange media
Exchange data

Open Ports

Open the following ports for Browser and Native Applications:

Port	Protocol	Notes
443	TCP	Product features such as images, messages, social profiles, etc. Sent via a combination of HTTPS and WSS protocols.
16384 to 32768	UDP outbound UDP bidirectional for established connections	Media (audio and video data), active calls, RTP & SRTP
19301 and 19302	UDP	STUN for NAT traversal
443	UDP/TCP	TURN for NAT traversal

Open the following ports for Obihai and SIP Phones:

Port	Protocol	Notes
80	TCP	Images that appear on the Obihai LCD display when one of your contacts calls you.
7060, 5060	UDP outbound, TCP	SIP signaling for call setup
5061	TLS	For secure phones (phones secured by TLS)
10000	UDP outbound UDP bidirectional for established connections	For Obihai only. Media (audio and video data) for active calls and configuration downloads from Obihai configuration servers.
16384 to 32768	UDP outbound UDP bidirectional for established connections	Media (audio and video data) for active calls, RTP & SRTP

Dialpad Tip: If you have outbound port restrictions, make sure you have Port 10000 to 20000 open under Protocol UDP/TCP (Obihai only).

*The ports need to be open to create outbound UDP. Dialpad will piggyback on this open pinhole to send back UDP traffic.

Bandwidth

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