This is the SIPALG screen from the Huawei B593 Zain router.
The following words were detected on the Huawei B593 Zain SIPALG screenshot.
Huawei B593 Zain Router 4G LTE V100R001C186SP065 Status Setup Wizard General Settings Security Settings NAT Settings USB Management System Logout DMZ Port Mapping UPnP SIP ALG NAT Settings -> SIP ALG SIP ALG This page displays the setting of SIP service agent. If an SIP device in the intranet communicates with the Internet, the SIP service agent must be used to forward processed data packets. The typical application is SIP-based video conferences. SIP ALG SIP ALG: Enable SIP port: 5060 SIP ALG SIP is an application layer protocol. After the router performs NAT, some services cannot be provided properly. If SIP ALG is enabled, the IP address and port number of the intranet client stored in the data packets can be converted into the IP address and a vacant port number of the router. The data packets sent to the router will be forwarded to the intranet client. SIP port: indicates the port number of the SIP application server on the Internet.