VOIP SIP Softphones cannot connect on 5T

  1. SeanDevoy
    Cupcake Aug 8, 2019

    SeanDevoy , Aug 8, 2019 :
    VOIP/SIP Softphone software will not work on a One+ 5T. I have tried a few including Bria Mobile and Zoiper. Those both work on the same WIFI with the same account using other devices.

    I have done a packet capture at the server. The One+ 5T sends an auth packet, which is refused (by design) and the refusal packet includes a NONCE for a re-auth. That failure packet is not processed by the softphone, so no re-auth is sent. The softphone applications report this as a TIMEOUT.

    This problem is specific to my 5T. I have tried this same software on a Samsung Tablet and Samsung Galaxy Note5 on the same WIFI and it works fine.

    Every time I have seen this problem on other VOIP devices it has been a NAT translation issue.

    I reported this to One+ on chat and they asked me to document it here.

    Does anyone know of a SIP SoftPhone that works ON a ONE+ 5T (not other models).


    asfyra likes this.
  2. asfyra
    Cupcake Sep 3, 2019

    asfyra , Sep 3, 2019 :
    Same thing here one+ 7 pro.
    I can connect to asterisk with acrobits softphone, but I can not receive incoming calls after 10-15 mins if i put the phone off

  3. asfyra
    Cupcake Sep 29, 2019