1. 2009-05-29 Re: [cisco-voip] DTMF relay with Verizon SIP Trunk? cisco-voi Ryan Ratliff 2. 2009-05-29 Re: [cisco-voip] DTMF relay with Verizon SIP Trunk? cisco-voi US 3. 2009-05-29 Re: [cisco-voip] DTMF relay with Verizon SIP Trunk? cisco-voi Nick Matthews 4. 2009-05-28 [cisco-voip] DTMF relay with Verizon SIP Trunk? cisco-voi US