The are two separate businesses with two separate internet connections (DSL lines). We replaced analog trunks from Birch Telecom. #1 above was converted first and has worked just fine for several months. #2 was converted last week and has had the following problem. Several hours after conversion the extensions stopped ringing properly they will "buzz" instead of ring. Re-boot of ESI seems to fix the problem for a short time then back to "buzz". Replacing the Birch lines does not fix the problem UNLESS you reboot the ESI while they are connected then all is back to normal.
It seems that something about the trunks coming from the SPA8000 causes the ESI (but only the 8x24) to not be able to ring the extensions properly. I am pretty sure that both ESI systems are running the same software.
We tested the ring voltages from Birch trunks and SPA trunks and they appear identical! Any ideas would be greatly appreciated.
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...