I’ve managed to make a Cisco SPA301 with an asterisk server.
but the call transfer is not working with the phone. It is ok with the softphones (zoiper) an my native android sipphone. i use “**” and “##” for the transfers, i’ve been serching if these keys are used by Cisco for somthing else but i didn’t find anything.
Any help would be appreciated.
Please use Asterisk Support for support requests.
Those code are processed by Asterisk, so any phone that can generate those codes should work.