MSR810-W-LM 4G拨号不成功

单位的设备，前段时间VPN建立不了连接了，于是查找原因，结果发现在拨号也很困难，一直拨号失败，配置没变，最多就是切LTE，AUTO。SIM卡是联通4G卡，插手机里4G正常，上网正常，百思不得其解，截图是cellur1/0接口的信息，下面的有debug的dialer的LOG，麻烦给看一下有什么问题，谢谢

*Jan 1 01:04:43:470 2011 H3C DDR/7/EVENT: Found free channel on interface Eth-channel1/0:0, and trying to dia l with it. *Jan 1 01:04:43:470 2011 H3C DDR/7/EVENT: Dialing *99# on interface Eth-channel1/0:0, with user ID 0. *Jan 1 01:05:43:470 2011 H3C DDR/7/EVENT: Wait-carrier timer timed out on interface Eth-channel1/0:0, and cal l disconnected. *Jan 1 01:05:43:470 2011 H3C DDR/7/EVENT: Disconnecting link-call on interface N/A. *Jan 1 01:05:43:470 2011 H3C DDR/7/EVENT: Disconnecting call on interface Eth-channel1/0:0, with user ID 0 an d call ID 65535. *Jan 1 01:05:48:470 2011 H3C DDR/7/EVENT: Enable timer timed out on interface Eth-channel1/0:0. *Jan 1 01:05:48:470 2011 H3C DDR/7/EVENT: Auto dial timer timed out, and trying to dial on interface Eth-chan nel1/0:0. *Jan 1 01:05:48:470 2011 H3C DDR/7/EVENT: Found free channel on interface Eth-channel1/0:0, and trying to dia l with it. *Jan 1 01:05:48:470 2011 H3C DDR/7/EVENT: Dialing *99# on interface Eth-channel1/0:0, with user ID 0. *Jan 1 01:06:48:470 2011 H3C DDR/7/EVENT: Wait-carrier timer timed out on interface Eth-channel1/0:0, and cal l disconnected. *Jan 1 01:06:48:470 2011 H3C DDR/7/EVENT: Disconnecting link-call on interface N/A. *Jan 1 01:06:48:470 2011 H3C DDR/7/EVENT: Disconnecting call on interface Eth-channel1/0:0, with user ID 0 an d call ID 65535. *Jan 1 01:06:53:470 2011 H3C DDR/7/EVENT: Enable timer timed out on interface Eth-channel1/0:0. *Jan 1 01:06:53:470 2011 H3C DDR/7/EVENT: Auto dial timer timed out, and trying to dial on interface Eth-chan nel1/0:0. *Jan 1 01:06:53:470 2011 H3C DDR/7/EVENT: Found free channel on interface Eth-channel1/0:0, and trying to dia l with it. *Jan 1 01:06:53:470 2011 H3C DDR/7/EVENT: Dialing *99# on interface Eth-channel1/0:0, with user ID 0.