I cannot get my ATA's to accept SIP or down grade firmware.I have several ATA firmwares and have re downloaded new copies several times.ata18x-v2-15-ms-020927a.zup - sccp v2.15ATA030204SCCP090202A.zup - sccp v3.2.4ata18x-v2-16-1-030709a.zup - sip v2....

I had an ATA 186 trying to access 10.1.1.1 (SRST). My firewall blocked it because that IP is not in my network. Come to find out it was coded into my ATA by default. Not sure if its due to CUCM BE business edition or not but. I went to the ATA webpag...

I have had this issue since install. I have an ATA 186 with IP 192.168.19.12 trying to reach 10.1.1.1 port 2000 it is being blocked by my ASA firewall my entire phone system is at 192.168.19.xxx .It is absolutely spamming my firewall from port 2114 t...