Thank you for asking this question in the support community. When you get a chance, will you please reply with the ADTRAN's configuration (please, remember to remove any information that may be sensitive to the organization)? Furthermore, are all the Algo speakers connected to the same ADTRAN switch or spread among several switches? Does the PBX connect to the same switch as all the speakers? Are all the devices in the same subnet/VLAN?
Please, reply with any additional information or questions. I will be happy to help in any way I can.
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