business voip

What routers are compatible with Nextiva service?

Check your physical network hardware and have this information available when setting up a router for your Nextiva account.

With Nextiva service, most routers can be set up to work with your phone.  Our Support Team puts our best effort into making your current network setup work as-is before suggesting changes.

However, not all routers have been tested to work with Nextiva’s service, and some are just not compatible.

In order to ensure the best call quality, we suggest getting one of the following routers:

  • Linksys WRT54GL
  • Netgear WRN 3500L V2

Both of these routers allow a third party firmware, called Tomato, to allocate bandwidth to ensure your phones have enough Internet speed.

If you have any questions, please contact our Support Team here or email us at

How to set up a Nextiva Tomato router

Nextiva encourages our customers to purchase our router due to the software that we pre-install on the device; this software is called Tomato firmware. The device that we send out is a Netgear N300 Router. We recommend 1 mpbs of bandwidth for each phone on the account in order to ensure Quality of Service (QoS). Prior to setting up your router, you will need to know your Internet service provider, type of modem, perform a speed test, and know the amount of bandwidth you currently have.

How to set up your Tomato router:

  1. Unplug and turn off your modem. Connect one end of the Ethernet cable to your modem and the other to the Internet port of the router.
  2. Once plugged in, turn on the modem and connect the power adapter to the router. Plug it in to a power outlet and wait for the wireless LED to turn solid blue.
  3. Connect the router to your computer, then type into the address bar of your browser to access your admin section. The user name is admin and the password is admin for these routers.
  4. If you are not familiar with setting up a router, please email with your account number and contact information in the subject line and a member of our Support Team will reach out to you.

How to set up a U-Verse router with Nextiva

Problems relating to SIP-ALG:

U-Verse service requires customers to use a router that was designed specifically for U-Verse Internet, TV, and phone service. This can sometimes cause problems because the router has a default setting called SIP-ALG that cannot be disabled and the router cannot be replaced while using U-Verse Internet. SIP-ALG is a router function that will cause Nextiva’s traffic to be rewritten, which can cause problems such as one-way audio, dropped calls, and inbound and outbound call failure.

Nextiva is proactively prepared for this. Our server will send traffic that avoids this disruptive SIP-ALG functionality, but the phones/devices connected to this network may need to be modified, as well.

If you are familiar with making changes to your voice over IP phone/device, you will want to modify the source port of the phone to a port other than 5060 and reboot the U-Verse router. If you are not familiar with making this change, we encourage you to contact our support at 800-285-7995 and request assistance.

Inability to use Quality of Service (Bandwidth Allocation):

Quality of Service (QoS) is a function within some routers that allows you to allocate bandwidth to specific devices as needed. Since U-Verse requires the use of their routers, you are incapable of implementing a QoS capable router while using U-Verse Internet service. If you are using U-Verse Internet, you will be required to monitor the bandwidth being used at the location. If there is too much downloading/uploading on the network it could cause the phone quality to degrade.

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