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Thread: Realtionship betwen Ip line and extension passwords

  1. #1

    Default Realtionship betwen Ip line and extension passwords


    I am hoping someone can clarify the realtionship between the ip line password and user extension password.

    1) A user extension name eg ext 109 is created on the pbx, you then assign a complex password under general setttings eg 12345678911234

    to register an Ip phone manually on "other Ippabx" you with need ( no IP line mapping )

    sip user name = 109
    password =12345678911234
    pabx/sip reg ip = ( for local ippabx)

    but on the QX the details used to register an IP phone = locext109 and password of the ip line 67YUHYTFGD67T5
    these are taken form the Ip line configuration.

    so is my undertstanding correct once the Ip phones uses the ip line to rgeister with the QX the qx maps the IP line details with the extension details it does not verify the extension user details but maps the IPLINE to the extension so if the details of the IPline are correct the line is autorised to use that extension to make a call which it is attached to.

    So why is there a need to have password also on extension user. When will extension password be used to register to the QXpabx.

    Thanks in advance

  2. #2


    In order to clarify this, please think of any Epygi device not as an IP PBX, but as an IP Call Router. So SIP endpoint user parts, have nothing to do inherently with extension numbers, as in other PBX systems.

    As such, when a SIP endpoint registration is created in IP Lines, locext_xx can be anything you wish, not just the Extension No. as required on other IP PBX systems. The locext_xx acts as the user part of a SIP URI without exposing the internal extension numbering plan, for safety reasons.

    Since this works for IP Lines but not for regular extensions, Epygi goes one step further and creates a unique 8-digit extension SIP URI [] which is publicly accessible via Epygi's SBC [Session Border Controller], so individual extensions can be reachable via their SIP URI as well, again without exposing the internal extension numbering plan.

    Assigning extensions to IP Lines, is controlled via editing an extension in General Settings and selecting an IP Line in a drop down menu.

    The extension number along with the numeric only password set in General Settings, coupled with the option "GUI Login Allowed", enables the extension user to login via the WebUI and control the same parameters Admins are allowed to access, by clicking directly on the extension number i.e. Main, Voice Mail, Your Extension, Supplementary Services.

    There is absolutely no need to provision a password in General Settings, if the option "GUI Login Allowed" will not be enabled for extension users. You can allow the default bullets to remain without hesitation.

    Hopefully, the above clarified in detail the difference between the two sets of username / passwords, as well as the thought process behind the convoluted way all Epygi devices were designed to be provisioned, in order to avoid exposing their internal extension numbering plans, in SIP message exchanges with other SIP UAs.

  3. #3


    Thank you for that detailed explanation it really helps. Wish they with inculde it in the manual it does help when you can imagine how everything inetracts in your head.

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