IP Telephony and Phones

Not sure how to troubleshoot these new phones, but when I power the phone via wall power (power cube) or 48v POE, the phone LEDs stay on for a second or two then go out, and then the phone does nothing.  No display or additional blinking lights - not...

Hi!I have a strange situation. After upgrade from 10.0 to 10.5, DHCP on CUCM is no longer working.Bug or there is some new security settings somewhere that prevents CUCM to be DHCP server??

Hi Everybody I have 2 phone registered to the same CUCM( 7.x also tried on 8.1)  cluster.(have only 1 node in cluster)cipc with SCCP3rd party SIP soft phone with SIPI am unable to dial SIP phone from SCCP phone , but the SCCP phone is reachable via t...

I am planning to upgrade CUCM 8.X to 10.X version in UCS C 200,my queries are before upgrading what are the pre requirements to be consideredHow to migrate licenses? If i have UCSS/ESW contract what is the procedure tp migrate licenses? In case i don...

We have users here on nights and weekends that will answer a very small amount of phone calls.  One agent in particular has trouble remembering to log in when they get in the building.  I have looked and searched, but I can't find any specific inform...

Hi All.I was made aware that there is no bootable UCCX 8.5.1 iso available. So, I installed 8.0.2 and initiated a software upgrade (from the OS admin) to 8.5.1. After the reboot I logged in to the web GUI and tried to run the upgrade through 'Cisco U...

  Hi. I have installed a CCME with a SIP trunk service provider. Some calls, when they are already established and functioning properly the audio is lost. The call is still established but no audio. Any idea?

Hi, My Customer is implementing IP Phone 7821 and verified the following problem:When the call is originate this IP Phone model to another DN that have translattion pattern configured, the user B not receive the information about the name and number ...

We are setting up a 10 channel E1 R2 in Brasilia. Its currently working perfectly with a PBX, we are moving it to CME with 2811We are in the testing stage, I am testing it remotely from Europe which isnt ideal.Currently, the E1 comes up and inbound c...

Hi,We're looking to roll out Avaya 9608 handsets to a site that currently do not use IPT.Another team look after the Avaya side of things. I'm on the LAN/WAN side. Site have one large data VLAN but we need several smaller voice VLANs for each buildin...

Hello,We are running Cisco Call Manager with MGCP and E1 connection to a Siemens PSTNWe have started experiencing no voice when calling to Siemens or calling from Siemens to Cisco. The call goes through but there is no ring tone and no voice when the...

HelloWe are running a cluster of 3 servers with Cisco Call Manager version 6I have noticed that the replication status is 3 on all servers and from the CM Database Status I can see  queue of updates are stuckI have restarted Pub and one Sub but the s...

  Hi,I want to take serial numbers of all phones for call manager 8.6. I tried "Netpacket-cucm-phone-audit-tool" but it is valid for cucm 9.x version.Can anyone tell me how same tool can be used for cucm 8.6 ? Also I tried, "serial grabber" but it is...