Hello,I have a FreeSwitch with vanilla configuration connected to an SIP Provider.I configured the proxy-hold=true configuration on Sofia Internal profile so when i activate the Hold on internal sip regs, it will be forwarded to SIP Provider.The SIP Provider provides MoH when requested.I have a problem that results on the call on silent or terminated by SIP Provider when I do the next actions:1- I receive a call from the SIP Provider2- the caller activate MoH and deactivate MoH3- the callee activate the MoH4- Now the call is silent (with other SIP Provider the call is dropped by SIP Provider)I notice that on step 3, the FreeSwitch send a Re-INVITE without SDP, so I think this causes the call to be silent, or sometimes the SIP Provider drop the call.I replicate this issue creating a sipp scenario and verified this issue.SIPP scenario to replicate this issueFreeswitch logs:Command to use sipp scenariosipp -i 172.21.0.1 172.21.0.11:5080 -s 1001 -sf scenario.xml -m 1 -l 1 -r 1 -rp 1000#172.21.0.1 -> local ip#172.21.0.11 -> Freeswitch IPBest regards,Jose Lopes