I am not sure what you mean by long dial tone. If you mean that there is a long delay after dialing digits, this is usually a problem on the PSTN side, but you may be able to help this by setting the adddialdigit to Yes.
As for the one way voice, is your unit behind a firewall or NAT? If it is, there are things you need to do to make sure that the voice goes through correctly. You can go to Quintum’s web site, under support and search for NAT. The document you find should provide information on how to resolve this.
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