$4,000 Verizon Interoperability test for Asterisk

When setting up a Asterisk based VOIP PBX, has anyone run into Verizon’s requirement to go through a SIP interoperability “field test” to certify that Asterisk will work with a direct SIP trunk connection? It takes 3 to 4 weeks and costs $4,000.

verizonbusiness.com/solution … unking.xml