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I have a couple of DBS 210 bases (new) that have v4.5 on them. I will be using them on CUCM. I understand that I need to update them in stages until the latest version, but the documentation says I need to go to v4.6 before going to 4.8 and then on t...
Have you checked that SIP ALG is disabled on your router? If it is enabled it can cause issues like this, so it's best to turn it off.no ip nat service sip tcp port 5060no ip nat service sip udp port 5060
Check the username and password are correct in the admin portal. Are they trying to use the same PIN that they use on the phone as the password? If so, this is wrong. The web access method uses a different PIN, which by default is 12345 (not 1234 as ...
