userhost> show security alg sip calls Total number of calls: 1 Call ID: 47090a3230.2.20.5 Method: INVITE Meaning The output shows a list of all active SIP calls. Enabling the SIP Protocol option and clicking OK will enable the routers SIP ALG facility.
Alternatively, from the CLI, enter the show security alg sip calls command. In the NAT > ALG menu, the routers SIP and RTSP (not RTP) ALG services can be enabled. For example, customers may report issues like incoming calls failing, or phones not registering at all. Session Initiation Protocol (SIP) is an Internet Engineering Task Force (IETF)-standard protocol for initiating, modifying, and terminating multimedia sessions over the Internet. From the J-Web interface, select Monitor>ALGs>SIP>Calls. With SIP ALG (Application Layer Gateway) enabled, customers may experience issues with calls and conferencing apps due to SIP traffic being interrupted, while also heavily impacting the quality of VoIP apps and services. SIP ALG may or may not work for Vilo 5 due to a chipset limitation. If a PE ( customer provider ) device is installed in your Demarc and you have no access to it, you may have to contact the ISP provider to disable SIP ALG. Currently, this can be manually disabled/enabled in the Vilo ISP Portal for Vilo 5 (Wi-Fi 5) & Vilo 6 (Wi-Fi 6) respectively. Disabling this setting can help mitigate issues related to VoIP services.
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