Verizon IP Trunking

[cdemaret]

I am starting this discussion area to help answer any questions related to Verizon's IP Trunking services for Cisco VoIP products.

I work with the Verizon engieering teams to help with Interop issues between Cisco and Verizon's VoIP network.

Please feel free to ask any questions related to design, implementation, and trobleshooting a Cisco deployment using Vz IP Trunking.

Thanks,

Charles

[dmitry]

Found the solution by upgrading IOS to 124-22.YB8 that supports

voice class sip-profiles xxx

     request INVITE sip-header Remote-Party-ID modify "screen=no" "screen=yes"

Applied this to the dial-peer - works fine now.