Support network: GSM: 1900/1800/900/850M; LTE FDD: B1/B2/B3/B4/B5/B7/B8/B28; LTE TDD: B40WCDMA: B1/B2/B5/B8GSM: B2/B3/B5/B8., which is easy to install and operate under stable performance. 【WIDE APPLICATION】Built-in watchdog automatic detection, automatic restart failure,all-round avoid the occurrence of crashes,to avoid missed missed calls.
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