Mango Voice
2 min read·Last updated: 07.16.2025

Network Requirements for Best Results with Mango Voice

The following network settings and recommendations will help Mango Voice customers get the most out of their VoIP service.

Internet speed & bandwidth

Wondering how fast your connection should be? Review our guidance on how fast your internet connection should be for the best results with Mango Voice phone systems.

SIP-ALG

SIP-ALG needs to be disabled, as well as all other mechanisms (such as H323) that alter SIP traffic, SIP headers, and SIP SDP information.

Required outbound traffic

From Mango Voice devices to the internet, you must allow:

  • SIP traffic on UDP/TCP ports 5060–5061, 5161, 7001, and 7003
  • RTP traffic on UDP ports 12000–32000
  • DNS queries (UDP 53)
  • HTTP & HTTPS (TCP port 80 & TCP port 443) are required for Mango Voice phones to download their configuration files.
  • DHCP is required for any Mango Voice devices on-premise. If you need static IP addresses, we recommend using DHCP reservations. Otherwise, static IP addresses may be used if they are set up and maintained by the customer's IT staff.

VLANs

VLANs are supported but must be set up and maintained by the customer's IT staff.

Latency

Network latency to Mango Voice's SBCs should be below 70 ms, but below 50 ms is recommended.

Firewall

Mango Voice phones must bypass all firewall advanced security features (IPS / Content Filtering / etc.). These processes have been shown to cause issues with voice quality and connectivity.

Ethernet connection

An Ethernet connection is required for each Mango Voice device. In the case where only one Ethernet outlet is available, Mango Voice supported devices should have a built-in switch. A Mango Voice device must be plugged in first and all other devices must be plugged in through the Mango Voice device.

NAT

NAT is an essential part of most networks. Mango Voice devices do support NAT traversal over a single NAT connection. Networks with double NATs are not supported and will cause undesired results.

Traffic shaping & QoS

Traffic shaping is recommended but not essential in most healthy networks. If traffic shaping is needed, all Mango Voice devices will pass a QoS DSCP priority tag of 26 and 46 for audio and 34 for video. You can use these DSCP priority tags to prioritize voice and video traffic.

How do I get help?

If you have any questions about configuring your network, reach out to Mango Voice Support and we'll be happy to help.

Stay in the loop.

New posts, product updates, and insights for healthcare practices, delivered to your inbox.