I have run the command lsusb and got the following code:
Bus 001 Device 002: ID 8087:8000 Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 002 Device 005: ID 8087:07dc Intel Corp. Bus 002 Device 004: ID 5986:055d Acer, Inc Bus 002 Device 003: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller Bus 002 Device 014: ID 09da:c10a A4Tech Co., Ltd. Bus 002 Device 028: ID 19d2:2003 ZTE WCDMA Technologies MSM Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
It shows the Modem but I can not find it on the network section, even after unmount the 'ZTE USB SCSI CD-ROM (2.31)' device from the disk. What should I do? Or, Can anyone tell me the process of installing modem handler like Windows OS ?