FAQs & Troubleshooting FAQ Search Results FAX-1960C Not your product? Search by FAQ ID number Search Back to FAQs & Troubleshooting. 2 Results 1.faq00002123_020 I'm using Voice Over Internet Protocol (VoIP) and am having problems sending faxes. 2.faq00002123_023 I'm using Voice Over Internet Protocol (VoIP) and am having problems receiving faxes. FAQs & Troubleshooting
