USG LITE 60AX SIP ALG settings

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LukeArchbold
LukeArchbold Posts: 25 image  Freshman Member
First Comment First Anniversary
in Security

Hi all,

We recently installed a USG Lite 60AX on a clients premises.

Im not entirely sure the 60ax is the problem but they have started experiencing unusual VOIP issues. Just wondering if ther is SIP ALG (or something along those lines) on these devices and if so how do I turn it off please.

Kind regards,

Luke Archbold.

All Replies

  • Zyxel_Tina
    Zyxel_Tina Posts: 729 image  Zyxel Employee
    Zyxel Certified Network Administrator - Security Zyxel Certified Network Administrator - Switch 100 Answers 500 Comments

    Hi @LukeArchbold,

    After checking, we confirm that the USG LITE 60AX enables SIP ALG, however, there's no enable/disable button currently. To better assist you, could you please describe the unusual VoIP issues in more detail? For example, what specific symptoms are you encountering? This will help us investigate further and provide targeted guidance.

    Zyxel Tina

  • LukeArchbold
    LukeArchbold Posts: 25 image  Freshman Member
    First Comment First Anniversary

    Hi Tina,

    The main issue so far is that when users are making outbound calls and the outbound is in a ringing state if an inbound call comes in it cuts off any outbound calls to prioritise in bound.

    Is it possible to disable SIP alg trhough the console?

    Kind regards,

  • Zyxel_Tina
    Zyxel_Tina Posts: 729 image  Zyxel Employee
    Zyxel Certified Network Administrator - Security Zyxel Certified Network Administrator - Switch 100 Answers 500 Comments

    Hi @LukeArchbold,

    To further assist you, please enable Zyxel Support Access and share the org/site name with us.

    Zyxel Tina

  • LukeArchbold
    LukeArchbold Posts: 25 image  Freshman Member
    First Comment First Anniversary

    Hi Tina,

    I have enabled support access for the client.

    Thank you.

  • Zyxel_Tina
    Zyxel_Tina Posts: 729 image  Zyxel Employee
    Zyxel Certified Network Administrator - Security Zyxel Certified Network Administrator - Switch 100 Answers 500 Comments

    [Summary]

    The USG LITE 60AX enables SIP ALG by default, with no option for users to enable/disable it directly. We assisted by disabling this feature to help test if it improves the VoIP experience. No further issues have been reported since disabling it.

    Note: If SIP functionality is needed after testing, restart or reboot the USG LITE 60AX to restore the default SIP ALG settings.

    Zyxel Tina

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