Vodafone Spain has teamed up with Chinese vendor Huawei to stage what the two parties claim is ‘the first 5G call in the world’. The call – between Castelldefels in Barcelona and Madrid – adhered to the standard commercial specifications approved by industry standards body 3GPP in December 2017, and utilised spectrum in the 3.7GHz band. The test also demonstrated a ‘dual 4G-to-5G connection’, which the companies say will be an important facet of 5G network technology, assisting with the control and management of data traffic.