How to disable SIP ALGs on Most Routers
Posted by Chris P. on 30 August 2023 02:35 PM
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You can verify if your router is SIP ALG ENABLED by downloading and running our SIP ALG TESTER Program
Asus Routers Disable the option SIP Passthrough under Advanced Settings / WAN -> NAT Passthrough. If your router doesn't have this option SIP ALG may be disabled via Telnet. AVM Fritz!Box SIP ALG cannot be disabled. (See above on how to get around this) Barracuda Firewalls Go to Firewall > Firewall Rules > Custom FirewallAccess Rules Click the "Disabled" checkbox next to any rules named LAN-2-INTERNET-SIP and INTERNET-2-LAN-SIP This disables SIP ALG. Billion Navigate to the web interface Select Configuration Select NAT Select ALG Disable SIP ALG BT (Homehubs) SIP ALG cannot be disabled in the settings of BT HomeHubs but can be disabled with BT Business Hub versions 3 and higher. D-Link In 'Advanced' settings --> 'Application Level Gateway (ALG) Conguration' un-tick the 'SIP' option. DD-WRT No ALG function available - Consider using a public STUN server DrayTek DrayTek Vigor 2760 devices, the option can be found in the regular interface at Network -> NAT -> ALG. If your device does not have a web interface then you'll need a telnet client. You will be prompted to provide a username and/or password. These are the same credentials used to access the router's web interface. Afterwards, type in these commands: sys sip_alg 0 On Draytek Vigor2750 and Vigor2130 please use these commands instead: kmodule_ctl nf_nat_sip disable EE Huawei E5330 Navigate to the web interface Click Settings. Enter the required username and password, then click Log In. Note: The default username and password is admin. Click the Security dropdown. Click SIP ALG Settings. Untick the Enable SIP ALG box. Click Apply. Fortinet Fortigate: SIP ALG in a VoIP Profile SIP is enabled by default. If you are just using the VoIP Profile for SCCP you can use the following command to disable SIP ALG in the VOIP Profile. config voip profile Huawei · The SIP ALG setting is usually found in the Security menu. · Vodafone / Huawei (HHG2500) · TalkTalk / Huawei (HG633) · EE / Huawei (E5330) Juniper Type the following into the CLI To check if currently enabled or disabled run show security alg status | match sip To disable run: configure Linksys: Check for a SIP ALG option in the Administration tab under 'Advanced'. You should also disable the SPI Firewall option. Mikrotik Disable SIP Helper. Netgear Look for a 'SIP ALG' checkbox in 'WAN' settings. Under 'NAT Filtering' uncheck the option 'SIP ALG' Port Scan and DoS Protection should also be disabled. Disable STUN in VoIP phone's settings. openwrt No ALG feature - Consider using a public STUN server SonicWALL Firewall Under the VoIP tab, the option 'Enable Consistent NAT' should be enabled and 'Enable SIP Transformations' unchecked. Speedtouch To disable SIP ALG you need to telnet into your Speedtouch router and type the following: -> connection unbind application=SIP port=5060 -> saveall Tomato Depending on the version of Tomato, SIP ALG can be found under Advanced then Conntrack/Netlter in the Tracking/NAT Helpers section. If you nd SIP checked then SIP ALG is enabled. Uncheck it to disable it. TP-Link Navigate to your routers web interface. The default username is admin and the default password is admin. On the left, click on Advanced Setup and then click on NAT and then click on ALG. Uncheck the box by SIP Enabled. (Some TP firmware shows this as SIP Transformations which is the same thing). Click Save/Apply. UBEE Gateways Go to Advanced > Options. Disable (uncheck) SIP. Disable (uncheck) RTSP. Click Apply. Ubiquiti Use the configuration tree if supported: system -> conntrack -> modules -> sip -> disable Alternatively, you can SSH into the device and run the following commands: configure ZyXEL Under Network or Advanced -> ALG un-tick the options Enable SIP ALG and Enable SIP Transformations. Telnet commands must be used to disable SIP ALG with some other Zyxel routers. ZyXEL (ZyWALL USG Routers) Go to Settings > Conjuration > Network > ALG.
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