Tango Tango’s radio integration systems provide connectivity from a customer’s LMR system to the Tango Tango cloud, enabling seamless communication between Tango Tango app users and LMR radio channels. The integration kit is shipped to the customer’s site and can typically be setup and working with 10 minutes. One factor in this fast setup time is the use of a cellular modem in the kit to provide Internet connectivity to the Tango Tango servers.

Most Tango Tango integration kits are also capable of using the customer’s own Internet connection, in addition to the cellular modem. This has some potential advantages:

  1. Fixed site, wired Internet connections are often faster than cellular connections and can be more reliable.
  2. Tango Tango can configure a kit using wired Internet to use the cellular link as an emergency backup, providing extra redundancy for the system.

The following explains the setup needed for the customer’s network to support using wired Internet for Tango Tango’s integration systems.

Network Configuration Requirements

  1. The customer Internet should be connected to WAN port on the Cradlepoint device in the Tango Tango integration kit.

  2. The customer networking infrastructure between the Internet and the Cradlepoint WAN port (i.e. customer firewall) MUST:

    1. Support DHCP, to allow for automatic IP address and DNS server address to the Cradlepoint WAN port
    2. NOT assign the WAN port an IP address that conflicts with 192.168.1.0/24, which is used by the Cradlepoint’s LAN network.
    3. Allow outbound and inbound traffic to TCP port 443.
    4. Allow outbound and inbound traffic to UDP port 123 for hosts pool.ntp.org and time.google.com

  3. These rules are required to support audio and PTT call traffic between the integration system and the Tango Tango servers.

  4. The customer networking infrastructure between the Internet and the Cradlepoint WAN port (i.e. customer firewall) SHOULD:

    1. Allow outbound and inbound traffic to TCP port 8001 for hosts  stream.cradlepointecm.com and stream-shard.cradlepointecm.com+
    2. Allow outbound and inbound traffic to TCP port 30000 for host  remoteconnect.cradlepointecm.com

  5. These rules are encouraged, to support remote management of the Cradlepoint device in the event that the cellular connection fails.