troubleshooting Question

NEC 8100 AND SONICWALL TZ200/100 VPN-VOIP VOICE DROPS

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PowerC280 asked on
RoutersVPNVoice Over IP
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We have a NEC 8100 phone system.  At the main site where the system is we are using a TZ200 at remote site we have a TZ100 with a site to site VPN.  The phone rings on the other side but there is no voice between sites.  I have opened VOIP ports, plus ports 10000 - 20000 and ports 5080-5081.  Sip transfermation is disable on both.  Can anyone help me?????
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David Atkin
Technical Director
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