If you are in awe of those early morning queues outside Apple Stores globally, hang on. From Bhubaneswar to Ahmedabad and from Lucknow to Mohali, people on Thursday made a beeline -- some even as early as 2 a.m. -- for Reliance Digital Stores and Digital Xpress Mini Stores to get a free Jio test 4G SIM.The 4G Preview Offer gives access to free 4G internet, VoLTE voice-calling, video-calling and SMS for 90 days.Till now, the offer is available on smartphone brands like Samsung, LG, Panasonic, Micromax, ASUS, TCL, Alcatel and LYF and the testing phase is being extended to other smartphone brands on the Jio new 4G-LTE, all-IP based network. Jio's 4G-LTE services include unlimited HD Voice and video calls, unlimited SMS and unlimited high-speed data.It will also give users access to free Jio Premium apps such as JioPlay, JioOnDemand, JioBeats, JioMags, JioXpressNews, JioDrive, JioSecurity and JioMoney.JioOnDemand offers access to movies, TV shows, live TV, etc. and JioBeats is for music.The offer is also available on Jio's Wi-Fi hotspot devices, JioFi.Interested customers need to carry their proof of identity, proof of address and passport-size photos to get the SIM.The offer is valid for a period of 90 days from the activation of the Jio SIM.