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The error I am getting is:

Registration failed (Transport failure: no transports left to try (503))

Using the exact same settings in windows it works, no problem so, I am at a loss and any help would be appreciated.

Thank you,


in Android by (120 points)

Are you sure the account transport type is the same on both Androiid and Windows? Please dfouble-check that.

I followed the instructions from the VOIP provider:

Since then I kept poking around and just got it to work. The Network Transport Type was set to TLS by default. Switched it to TCP and it started working.

Thanks for trying to help.


1 Answer

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The error - Registration failed (Transport failure: no transports left to try (503)) could appear - in fact it is actually returned from the server - when the selected transport type(UDP,TCP,TLS) is not correct.

In Zoiper for Android accounts that are manually created always have UDP transport by default.

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