Let me know how to Add polycom 5000 on CUCM 7

I am getting follwoing error on gatewaySyslog Error:MAINBOARD-3-I2CRW_ERROR: Write failure - Device @ 0x07, offset 0x0000000E on I2C bus 2  :Impact :; MAINBOARD-3-I2CRW_ERROR: Write failure - Device @ 0x07, offset 0x0000000E on I2C bus 2  ;VGR201-TEN...

Unity Connection Service status is DOWN. Connection Database Proxy. The alert is generated on Mon Jul 22 13:17:42 EDT 2013 on node Unity Connection 7let me know what will be the issue

We have to one of site on Call Manager with 4 digit extension, we will be changing to 7 digit now.GW is MGCPJust want to check if we can expand digits on gateway, as i have read somewhere number expansion command does not work in MGCP gatewaywe have ...

We are using Cisco CUE (Unity Express), we want to know the procedure to upload and associate greeting with user mail box.