Anyone using UTStar UT-304R2U with ATA (VOIP) adaptor?

Discussion in 'MTNL broadband' started by cedarboy, Mar 21, 2013.

  1. cedarboy

    cedarboy New Member

    I have been using the UTStar UT-304R2U with Grandstream HT486 VOIP adaptor for VOIP calling. However, the Grandstream stopped working last year so I replaced it with OBI 110. Now, for some reason incoming calls are not working. Outgoing calls work great. According to the SIP service I am using the SIP ALG is enabled on the UT-304R2U and it needs to be disabled.

    Has anyone had any experience in this? Is there a way to disable SIP ALG on UT-304R2U? Or alternatively switch off NAT on UT-304R2U?


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