4 ms·They were also a nightmare for us. We had to find another provider.by SN76477 5y agoThey were also a nightmare for us. We had to find another provider.csdvrx 5y agoCould you recommand one that provies SIP trunking and number porting?daneel_w 5y agoCheck with Sinch and Infobip.SN76477 5y agoUnfortunately no.