SIP-T20P No outgoing calls :(

[HN80]

Hi I have a Yealink SIP-T20P phone and want to use a SIP Phone connection to my provider.

The phone works fine with incomming calls but I can's call out.
I have contacted my Provider (XS4ALL, The Netherlands) and settings are ok as far the can give support. No block on outgoing calles.

When I want to make a call I get this message in the window "Wrong Login or Password" But the password is correct.

Register Status: Registered

Does anyone knows what the problem can be?

[CWR]

you would have to run a trace (wireshark perhaps) and check the fields being sent in the negotiation.
Then sent it to your provider and ask them what information might be missing.

[HN80]

Thx,

Wireshark does not see the phone. I think it's more a setting in the phone then a problem with connection to the SIP server.

[James_Yealink]

Hello,

May I know what's your phone firmware?
When you call all numbers phone will pop up this error?

Please get a pcap trace and config.bin through these steps:
1. Go to Setting-> Configuration, start pcap feature.
2. Make two different calls to reproduce the issue.
3. Stop the pcap feature and export it.
4. Export config.bin file to us.

Regards,
James