Thanks a lot for your advice. I have finally got two units of Cisco ATA 186. But, I am missing the IOS that are supporting SIP telephone accounts. Do anyone know how do I get that? And, the easiest way to load the image, when I do not have any TFTP-server?
You have a Cisco Unified Communications Manager (CUCM) system and want
to configure a SPA112 analog telephone adaptor (ATA) to register to the
CUCM so that you can use up to two analog phones or similar FXS devices
with the CUCM.In this application note, ...
This document is a must-read for all SPA232D installers, administrators,
and users. The document takes you from unboxing the SPA232D ATA and
SPA302D DECT handsets, through DECT handset registration, and connecting
to the PSTN and ITSP.The document describ...