Router Compatibility Guide for Hosted PBX Service
Table of Contents
Routers and Modems
- 2Wire
- Apple Airport
- Belkin
- Cisco Pix
- D-Link DI-524
- D-Link DI-604UP
- D-Link DIR-615
- D-Link DIR-628
- D-Link DIR-655
- D-Link DIR-825
- D-Link DIR-855
- D-Link DGL-4100
- D-Link WBR-1310
- D-Link EBR-2310
- Dynex Routers
- Firebox Routers
- Hotbrick Routers
- Juniper - Netscreen
- Linksys BEFSR41
- Linksys RV082, RV016, RV042
- Linksys RVS4000
- Linksys WRT110N
- Linksys WRT160N
- Linksys WRT310N
- Linksys WRT350N
- Linksys WRT610N
- Linksys WRT54G, WRT54GX, WRT54GL, WRT54GS
- Linksys WRT54G2
- Netgear Routers (General)
- Netgear FVS318
- Netgear FVG318
- Netgear WGR614
- Netgear WGT624
- Netgear WRN2000
- Netopia
- Siemens Speedstream
- SMC 3100
- SMC Routers
- Sonic Wall
- Thompson Speedtouch ST-585
- Thompson TG-585
- Trendnet Routers
- Zyxel
About this Document
The following is a list of known routers and modems which we have determined to be compatible, incompatible or compatible with changes to the configuration of the device. We highly recommend checking all network equipment on site against this list before deploying voice over ip service in your office. Whenver possible you should choose a router that has QOS (Quality of Service) if you plan to share the same internet connection with non voice over ip services (such as desktop computers). We also recommend that you always make sure your router is bridged and updated to the newest firmware available before troubleshooting unless otherwise specified by this guide. This list is updated frequently and we recommend you check back periodically for any updates.[Back to Top]
2Wire Routers and Modems
| Current Status: | Known Issues |
| Recommendation: | Disable SIP ALG or Bridge to Supported Router |
| Comments: |
To use this router you need to login to the web interface for the router and disable the 'SIP ALG' setting on it. If this option is not available you will need to bridge the router to a compatible router so that the 2wire router acts as a simple modem rather than a router.
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Apple Airport
| Current Status: | Compatible |
| Recommendation: | Suitable for 1-2 phones |
| Comments: |
There are no known issues with this router.
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Belkin
| Current Status: | Not Compatible |
| Recommendation: | Replace device |
| Comments: |
This router is not compatible with voice over ip services.
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Cisco Pix
| Current Status: | Not Tested |
| Recommendation: | Not Tested |
| Comments: |
The cisco pix firewall requires that in version 7.0 or later look at the "inspect" fields. (Prior to version 7 it was called "fixups" not "inspect".) Make sure that the "inspect SIP" field is NO. "no inspect sip" is the proper setting. With 'inspect sip' on the PIX firewall replaces the internal IP address of the phone with the external IP address. we use both pieces of information to accurately deliver the call. The internal IP address must be inside the SIP packet for proper functioning.
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D-Link DI-524
| Current Status: | Untested |
| Recommendation: | Untested |
| Comments: |
This router has not been tested for compatibility with voice over ip services. We recommend testing the router before using in a production environment.
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D-Link DI-604UP
| Current Status: | Untested |
| Recommendation: | Untested |
| Comments: |
This router has not been tested for compatibility with voice over ip services. We recommend testing the router before using in a production environment.
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D-Link DIR-615
| Current Status: | Compatible, Hardware Revision B Only |
| Recommendation: | Disable SIP ALG |
| Comments: |
This applies to Hardware Revision B only. Other hardware revisions are not compatible with voice over ip as they do not have the disable SIP ALG option.
This router has known issues with voice over ip services if SIP ALG is not disabled. We recommend disabling the SIP ALG setting on the router available in firmware releases 2.2.4 and higher. This option is available within the firewall settings under the 'Application Level Gateway (ALG) Configuration'. The SIP option should be unchecked.
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D-Link DIR-628
| Current Status: | Untested |
| Recommendation: | Disable SIP ALG |
| Comments: |
This router has not been tested for compatibility with voice over ip services. If the router has an option to disable SIP ALG we would recommend disabling it.
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D-Link DIR-655
| Current Status: | Untested |
| Recommendation: | Disable SIP ALG |
| Comments: |
This router has known issues with voice over ip services if SIP ALG is not disabled. We recommend disabling the SIP ALG setting on the router. This option is available within the firewall settings under the 'Application Level Gateway (ALG) Configuration'. The SIP option should be unchecked.
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D-Link DIR-825
| Current Status: | Untested |
| Recommendation: | Disable SIP ALG |
| Comments: |
This router has known issues with voice over ip services if SIP ALG is not disabled. We recommend disabling the SIP ALG setting on the router. This option is available within the firewall settings under the 'Application Level Gateway (ALG) Configuration'. The SIP option should be unchecked.
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D-Link DIR-855
| Current Status: | Untested |
| Recommendation: | Disable SIP ALG |
| Comments: |
This router has known issues with voice over ip services if SIP ALG is not disabled. We recommend disabling the SIP ALG setting on the router. This option is available within the firewall settings under the 'Application Level Gateway (ALG) Configuration'. The SIP option should be unchecked.
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D-Link DGL-4100
| Current Status: | Untested |
| Recommendation: | Disable SIP ALG |
| Comments: |
We suggest trying to disable SIP ALG by going into the router's web interface and selecting Advanced -> Firewall -> Application Level Gateway and disabling (unchecking) the SIP checkbox.
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D-Link WBR-1310
| Current Status: | Not Compatible |
| Recommendation: | Replace Device |
| Comments: |
This router is not compatible with voice over ip applications as it lacks an option to disable the internal SIP ALG which interferes with IP Telephones.
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D-Link EBR-2310
| Current Status: | Compatible, Hardware Revision B Only |
| Recommendation: | Disable SIP ALG |
| Comments: |
This applies to Hardware Revision B only. Other hardware revisions are not compatible with voice over ip as they do not have the disable SIP ALG option.
This router has known issues with voice over ip services if SIP ALG is not disabled. We recommend disabling the SIP ALG setting on the router available in firmware releases 2.2.4 and higher. This option is available within the firewall settings under the 'Application Level Gateway (ALG) Configuration. The SIP option should be unchecked.
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Dynex Routers
| Current Status: | Untested |
| Recommendation: | Untested |
| Comments: |
These routers have not yet been tested for compatibility with voice over ip services. We recommended testing the router before deploying in a production environment.
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Firebox Routers
| Current Status: | Untested |
| Recommendation: | Untested |
| Comments: |
These routers have not yet been tested for compatibility with voice over ip services. Discussions with engineers at Firebox indicate that the router is not likely compatible with SIP based devices such as IP telephones due to NAT concerns. We recommended testing the router before deploying in a production environment. If the router has SIP ALG or SIP Translations we would recommend trying to disable them.
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Hotbrick Routers
| Current Status: | Untested |
| Recommendation: | Untested |
| Comments: |
These routers have not yet been tested for compatibility with voice over ip services. We recommended testing the router before deploying in a production environment. If the router has SIP ALG or SIP Translations we would recommend trying to disable them.
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Juniper - Netscreen
| Current Status: | Compatible |
| Recommendation: | Disable SIP ALG |
| Comments: |
You must disable the SIP ALG on the Netscreen router. Navigate to the 'Configuration' page and choose 'Advanced'. Then choose ALG and un-check the SIP check box.
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Linksys BEFSR41
| Current Status: | Untested |
| Recommendation: | Untested |
| Comments: |
This router has not been tested for compatibility with voice over ip services.
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Linksys RV082, RV016, RV042
| Current Status: | Compatible |
| Recommendation: | Recommended |
| Comments: |
This router is recommended for use with voice over ip services and appears compatible with the most recent firmware revision. The MTU settings under 'Setup' -> 'Network' should be set to 1500 (Cable) or 1492 (DSL).
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Linksys RVS4000
| Current Status: | Untested |
| Recommendation: | Untested |
| Comments: |
The SIP ALG setting on this router should be disabled. To disable the SIP ALG you will need to login to the web interface and select 'Firewall' and then 'Basic Settings. Make sure that the 'SIP Application Layer Gateway' is set to 'Disable'.
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Linksys WRT110N
| Current Status: | Untested |
| Recommendation: | Untested |
| Comments: |
This router has not been tested with voice over ip services to determine compatibility. We recommend testing it prior to deploying it in a production environment.
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Linksys WRT160N
| Current Status: | Compatible |
| Recommendation: | Suitable for 1-2 Phones |
| Comments: |
There are no known issues with this model router at present.
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Linksys WRT310N
| Current Status: | Untested |
| Recommendation: | Untested |
| Comments: |
This router has not been tested to determine compatibility with voice over ip services. We recommend testing the router first before deploying it in a production environment.
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Linksys WRT350N
| Current Status: | Untested |
| Recommendation: | Disable SIP ALG |
| Comments: |
Firmware release 1.03.7 on Sept 14, 2007 introduced an internal change that disables SIP ALG within the software. SIP ALG interferes with voice over ip services and we would suggest trying to upgrade to this firmware version or higher. This router has not been tested for voice over ip compatibility.
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Linksys WRT610N
| Current Status: | Untested |
| Recommendation: | Disable SIP ALG |
| Comments: |
This router has not been tested for voice over ip compatibility. If this router has a SIP ALG settings we would suggest disabling it.
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Linksys WRT54G, WRT54GX, WRT54GL, WRT54GS
| Current Status: | Not Compatible |
| Recommendation: | Replace Device or Replace Firmware |
| Comments: |
This router is not recommended for use with voice over ip services using the stock firmware from Linksys. This model router is known to damage and modify SIP packets in such a way that it prevents voice over ip packets from being formatted correctly and can cause a multitude of problems. You may be able to install custom firmware such as DD-WRT (http://www.dd-wrt.com) as a replacement. The DD-WRT firmware allows you to disable SIP ALG and enable QOS (Quality of Service), but this has not been tested in our labs yet.
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Linksys WRT54G2
| Current Status: | Compatible |
| Recommendation: | Recommended for 1-2 phones |
| Comments: |
This router is compatible and recommended for 1-2 sip phones. Appears to have problems with 3 or more SIP phones caused by NAT issues. Use DDWRT firmware instead in this case if hardware revision allows for this.
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Netgear Routers (General)
| Current Status: | Not Compatible |
| Recommendation: | Replace Device |
| Comments: |
Most Netgear routers will not work with voice over ip services and have been blacklisted on our network to prevent customer issues. Most Netgear routers lack the ability to disable the internal SIP ALG which causes intermittent issues with phone service. We recommend avoiding this brand of router until Netgear makes it possible to disable the internal SIP ALG setting on all of their routers to be compatible with voice over ip.
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Netgear FVS318
| Current Status: | Not Compatible |
| Recommendation: | Replace Device |
| Comments: |
This router is not recommended for use with voice over ip services. This router causes issues related to storing configuration and failed firmware downloads with Aastra series phones. The router appears to work some of the time but lacks the ability to disable the SIP ALG which causes intermittent issues with phone service. If possible we would recommend avoiding this router until Netgear makes it possible to disable the internal SIP ALG setting on the router to be compatible with voice over ip.
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Netgear FVG318
| Current Status: | Compatible |
| Recommendation: | Known Issues |
| Comments: |
This router is known to cause issues related to storing configuration and failed firmware downloads with Aastra series phones. Aastra phones on this router require frequent reprogramming and firmware replacement. This router appears to work with voice over ip services with the SIP ALG setting is disabled. The router does not work properly with voice over ip with the SIP ALG setting enabled (which is enabled by default). You should make sure you have the most recent firmware for this router before using it. To disable the SIP ALG, first login to your router and select 'Rules' from the left hand side menu. Next, check the box that says 'Disable SIP ALG'.
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Netgear WGR614
| Current Status: | Not Compatible |
| Recommendation: | Replace Device |
| Comments: |
This router lacks the ability to disable SIP ALG and is not compatible with voice over ip services.
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Netgear WGT624
| Current Status: | Not Compatible |
| Recommendation: | Replace Device |
| Comments: |
This router lacks the ability to disable SIP ALG and is not compatible with voice over ip services.
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Netgear WRN2000
| Current Status: | Not Compatible |
| Recommendation: | Replace Device |
| Comments: |
This router lacks the ability to disable SIP ALG and is not compatible with voice over ip services.
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Netopia
| Current Status: | Untested |
| Recommendation: | Disable SIP ALG |
| Comments: |
Netopia has SIP Passthrough "on" by default and will not work with voice over ip services properly unless SIP ALG is disabled. (Or SIP ALG in newer models) In order to work with voice over ip, you must turn SIP Passthrough (SIP ALG) off.
The setting is not in the web gui. You have to telnet into the router, then type. Each line is a new command.
configure
set ip sip-passthrough off
save
exit
Restart
On the Netopia 4622xlt
Telnet into the device
Use the arrow keys to highlight 'quick menu' and press "ctrl-n"
That brings you to the console.
type:
ip nat alg sip enable no
save
exit
restart
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Siemens Speedstream
| Current Status: | Compatible |
| Recommendation: | Suitable for 1-3 Phones |
| Comments: |
There are no known issues with this router. This router is has no QOS (Quality of Service) which is a draw back if you are using it in an environment where there are computers or other non-voip equipment.
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SMC 3100
| Current Status: | Known Issues |
| Recommendation: | Bridge device to supported router |
| Comments: |
This router is not compatible with voice over ip services unless it is bridged. We recommend bridging the router to alternative router so that it acts as a modem only.
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SMC
| Current Status: | Not Compatible |
| Recommendation: | Replace Device |
| Comments: |
Most SMC routers do not appear to be compatible with voice over ip services. We would suggest that you either replace this router with a compatible one or attempt to bridge it to another router.
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Sonic Wall
| Current Status: | Compatible |
| Recommendation: | Disable SIP ALG |
| Comments: |
We recommend that customers set RTP up to 120 seconds and turn on consistant NAT. We also recommend that you disable SIP Transformations (uncheck the box).
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Thompson Speedtouch ST-585
| Current Status: | Untested |
| Recommendation: | Untested |
| Comments: |
You will need to use a telnet client to connect to this router or use putty. Once connected to the router you will need to type these commands:
connection unbind application=SIP port=5060
saveall
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Thompson TG-585
| Current Status: | Not Compatible |
| Recommendation: | Replace Device |
| Comments: |
This router is not compatible with voice over ip services. There is no method to disable the internal SIP ALG on device. Other customers have found that bridging the device to a compatible router did not result in a workaround. We recommend replacing this device with a compatible modem and router.
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Trendnet Routers
| Current Status: | Untested |
| Recommendation: | Untested |
| Comments: |
This router has not been tested for compatibility with voice over ip services. We recommend testing it extensively before using it in a production environment.
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Zxyel
| Current Status: | Known Issues |
| Recommendation: | Disable SIP ALG or bridge device to router |
| Comments: |
This router is not compatible with voice over ip services without modifications. We recommend either bridging the device to another router or disabling the SIP ALG. To disable the SIP ALG you must first telnet into the router/modem. Choose (24) System Maintenance and (8) Command Interpreter Mode. From the command line type:
ip nat service sip active 0
You will receive the message "SIP ALG Disable"
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