IP Telephony and Phones

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We're experiencing wireless voice problems that are affecting our call quality.We have 7925G wireless phones that connect to 1200 series APs which are connected to WISMs, then Call Manager 8.6.When walking around, the phone will hang onto an AP longe...

We just upgraded CUCM from 7.1.5 to 8.6. We have roughly 40 of these ATA's and I'm seeing that a few of them did not like the upgrade one bit, as now they won't do anything. They show up in Callmanager as "Unknown", therefore I can't see the IP addre...

In most of our offices the receptionists use ARC to route calls but we have a small office opening and the office manager does not want to use ARC.I would like the reception phone to be able to handle 4 or 5 lines so she can place calls on hold or tr...

I'm in the process of budgeting for an upgrade from CUCM 7.1.5 to version 9.X.  I have a question regarding the new licensing scheme.  In version 9.X is a license required for each VG224, FXO and FXS port?In version 7.1.5 VG224, FXO and FXS ports do ...

afischer1 by Level 1
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Hey team, I have been configuring MGCP communication between our communication manger and a Siemens PBX. But I don´t have a DNS server at moment in our lab. Can I configure the Domain name field with IP of the router? thanks.

                   My Call Manager Express only has Config files for the 79XX series of telepbones. How can I get the necessary files to be able to use Cisco 6921?Also, since I don't already have the files in my system, will I have to purchase these ...

Resolved! 9951 in sleep mode

Hi,We have a 9951 phone, and when in idle mode the screen finally turns black (this is what we want)When in this mode and a call is send to the 9951 phone, the phone starts ringing, but the screen stays black.This is extremely annoying, because you c...