Router Compatibility Guide And Recommended Equipment List

Overview

In most cases, adding VOIP2320 Phones to your network will not require any special networking equipment. However, some equipment on the market today has been shown to have issues with VoIP in general or SIP specifically, and may consequently cause problems for your connection.

The following guide will provide you with information about the routers and firewalls that work best with VoIP, configurations that may be needed on other equipment, and devices that have been shown to be incompatible with VoIP or SIP.
Recommended Network Equipment
If you are upgrading or setting up a new office and wondering which networking equipment to buy, we have found the following routers work well with VoIP traffic and require minimal configuration.
 
Note: SIP ALG (Application Layer Gateway) and SPI (Stateful Packet Inspection) need to be disabled on most routers and firewalls, if equipped. This is usually found on the Security/Firewall tab in the device's web interface.
 

Manufacturer	Model	Description	Price Range	Configuration
D-Link	EBR2310	4-Port Wired Router	$30 - $50	More Info
D-Link	WBR2310	4-Port Router with Wireless-G	$30 - $50	More Info
Linksys/Cisco	RV042	4-Port VPN Wired Router	$180-$200	More Info
Linksys/Cisco	E3200 V1.0.02 HW: V1	4-Port VPN Wired Router Wireless N	$120-$160	More Info
Linksys/Cisco	E4200 V1.0.03 HW: V1	4-Port Router with Wireless N	$170-$190	More Info
Netgear	WGR614 HW:1.1.24 HW: v8 | 1.2.24 HW: V9	4-Port Router with Wireless-G	$30 - $50	More Info
Netgear	WNR3500L V1.2.2.30	4-Port Router with Wireless N	$80-130	More Info
Netgear	WNDR3400 1.0.0.38 HW: v1	4-Port Router with Wireless-G	$70-$90	More Info
Netgear	WNDR3300 V1.0.45 HW: V1	4-Port 10/100 Router with Wireless N	$80-$120	More Info
Netgear	WNDR3700 V1.0.4.55NA HW: V1	4-Port Gigabit Router with Wireless N USB NAS Capability	$150-$170	More Info
Netgear	DG834G 5.03.14 | 5.03.16	DSL Modem Router Combination (For DSL ONLY)	$60-$90	More Info

Network Equipment That May Work After Proper Configuration

The following devices will often work with our service, when properly configured. Please consult your network professional to ensure these settings are in place.

Note: Not all Firmware/Hardware versions have been thoroughly tested.

Manufacturer	Model	Issue	Configuration Needed
2Wire	Any	Doesn't allow phones to Register	Put into Bridge Mode
Apple	Airport Extreme Wireless N Model	Older Models May cause Registration Issues	Replace with newer model / recommended router
Arris	TM502G	Has a backup battery in the bottom	Battery must be removed in order to restart.
Actiontec	Most Models are MRCs	Doesn't allow phones to Register	Put into Bridged Mode
Ambit (now Ubee)	Any	Incompatible with SIP	Put into Bridged Mode
Cisco	All Enterprise-level devices	May Cause Dropped calls	See RecommendationsCisco Enterprise Equipment
D-Link	DIR655	Various issues when using Hardware Version B.	More Info
Edgemarc	Most Models	Dropped calls, failed transfers	See VOIP2320 Support Recommendations
Linksys	RVS210	Only 4 phones can register	Replace if more than 4 extensions needed
Linksys	WRT54G Series	Different problems depending on the model
Linksys	WRT55AG	One way audio
Linksys	WRT610N	Sends Multiple Erroneous Registrations
Netgear	WNR3500	Problems with SIP, specifically for hardware version V1	Downgrade to Firmware 1.0.15
Netgear	WNR1000	Hardware V1 cannot disable SIP ALG, Call Groups will not work correctly. V2 is compatible	See Recommendations
Netopia	Any	Doesn't allow phones to Register
SMC	8014	Doesn't allow phones to Register	Put into Bridged Mode
Sonicwall	Any	Dropped calls (usually after 4 minutes and 30 seconds)	See Recommendations
Watchguard	Any	Dropped Calls/Transfers and One-Way Audio	See Recommendations
Westell	Most Models	Doesn't allow phones to Register	Put into Bridged Mode
U-Verse	2-wire	Problems with phone registration and transfers

 
 
Incompatible Network Equipment

The following devices are known to be incompatible with SIP or VoIP.

These devices must typically be replaced.

Manufacturer	Model	Issues
Apple	Airport Extreme Wireless G Model	Doesn't allow phones to Register
Apple	Time Machine	Doesn't allow phones to Register
Belkin	F5D and F7D Series (F5D7234, etc.)	Intermittent One Way Audio
D-Link	DIR825	Current firmware version is Incompatible with SIP
D-Link	DIR615, DIR600	On Firmware 3.X, SIP ALG must be enabled for phone to register. When enabled, it mangles SIP traffic.
Linksys	BEFSR Series (BEFSR41, BEFSR81)	Phones Can't Register or Transfer
Linksys	RVS4000	One Way Audio after Attended Transfers
Linksys	WRT120N	Problematic registrations
Linksys	WRT160N	Problematic registrations on Hardware v1 and v2. V3 has no issues from early testing
Linksys	WRT350N	Transfer Issues
Linksys	WRV200	Registration, loss of audio after transfers, and dropped calls
Linksys	WRV210	One way audio
Linksys	WRV54G	Doesn't allow phones to Register or Transfer
Motorola	MSTATEA	Doesn't allow phones to Register
Netgear	Pro Safe Series, FVS318	SIP ALG cannot be disabled, various quality problems. Avoid
Netgear	WNR2000	Incompatible, SIP Ringing message never arrives
Netgear	CG814WG or CG814WT or CG814WCOM	Modem/Router Combo with Proprietary Firmware
Netgear	WNR834B Ver. 2	Drops Attended Transfers

Do you have equipment that is not listed here? Consult our Router Settings Info page for general tips.