Thank you for asking this question in the support community. I believe what that statement is referring to is that when using the ADTRAN unit as a SIP Transparent Proxy, you do not have to use IP phones manufactured by ADTRAN. Here is the Configuring SIP Proxy in AOS guide for reference. I hope that makes sense, but please do not hesitate to reply to this post with any additional questions or information. I will be happy to help in any way I can.
Thank you for asking this question in the support community. I believe what that statement is referring to is that when using the ADTRAN unit as a SIP Transparent Proxy, you do not have to use IP phones manufactured by ADTRAN. Here is the Configuring SIP Proxy in AOS guide for reference. I hope that makes sense, but please do not hesitate to reply to this post with any additional questions or information. I will be happy to help in any way I can.
I went ahead and flagged the "Correct Answer" on this post to make it more visible and help other members of the community find solutions more easily. If you don't feel like the answer I marked was correct, feel free to come back to this post and unmark it and select another in its place with the applicable buttons. If you still need assistance, we would be more than happy to continue working with you on this - just let us know in a reply.
