Hello

Has any one experienced one way voice to mobile phones on the SCMC bit odd I know but no other type of call has the issue and it's only outbound?

Thanks

Forgot to mention this is on SIP trunks.

Yes, are these on gamma and usually ported EE mobile numbers?

Gamma can make some changes on their end if you let them know its a samsung PBX.

Gamma got back to us today and changed something their end as you said.

Thanks

Turn off sip alog in your router