Visitor
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1 Message
SIP ALG
I need advanced internet technical support. My employer uses Avaya VoIP and has specifically asked me to have SIP ALG disabled on my Xfinity XB8 gateway. I’ve already checked the gateway admin interface, and there is no SIP ALG control available to me. I need someone who can verify whether SIP ALG is enabled and whether Xfinity can disable it.
EG
Expert
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121.6K Messages
6 days ago
AFAIK, it's enabled by default on the Xfinity gateway devices, and it can't be disabled.
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Veddy254
Frequent Visitor
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9 Messages
5 days ago
Only way to disable it is have your own router that you can disable SIP ALG on and put the gateway into Bridge Mode so that it's just a modem. Otherwise, you're stuck. That being said, a lot of providers do provide a hostname to point the phone as a SIP ALG bypass. As far as the gateway is concerned, that setting is hardcoded to be enabled unless Bridge Mode is on.
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XfinityJamesC
Official Employee
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3.2K Messages
4 days ago
Greetings, @user_6h3l20! I hope your week has been treating you well. Thanks so much for taking a moment out of your busy day to leave a post on our community forum about disabling SIP ALG (Session Initiation Protocol Application Layer Gateway) on your XB8. You have definitely come to the right place for assistance.
I'm afraid @EG and @Veddy254 may be correct about this particular VoIP feature. We also use Avaya VoIP here on the Digital Care Team, but we have it configured as a soft phone on our systems, and we run it through a VPN, so the SIP ALG has never been a concern with the XB8.
Putting your XB8 in Bridge Mode is fairly straightforward. You just want to ensure you select a good router that can reach all of your wireless devices. I would check with your employer or coworkers to see if they have any suggestions. You can find more details and directions for using bridge mode on our support site here: https://www.xfinity.com/support/articles/wireless-gateway-enable-disable-bridge-mode.
Please let us know if you have any additional questions or concerns. Our amazing community is always ready to help, 24 hours a day, 7 days a week.
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