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I just started using the SPA112, 2 line SIP to analog adapter. When I originate a call to a Polycom SIP phone, the call works correctly. When I call to a Yealink SIP T-28P or T-22P phone I have one way audio, transmit to the 500 set, no audio to the ...
I just started using Cisco's SPA112 2 line analog adaptor. When I call a Polycom SIP phone on my network the call works correctly. When I call a Yealink SIP T-28P or T-22P I have audio issues. When I call from the Yealink phone to the ATA the call wo...
