Operating system name and version: Debian 7 (core 3.2 and 3.17.3)
Version of smsd: 3.1.15
Smsd installed from: packages
Name and model of a modem / phone: ZTE MF192
Interface: USB

Hi.
During the work i getting the following message:
write_to_modem: error 5: Input / output error

Specify any details?