We are trying to register IP Phones model 7821, 7861 in CUCM version 12.5 SU3. But as soon as we connect the phones into the network , it gets upgraded and then show the options i.e." Provision a new phone and Replace an existing phone". As we select...
We have gone through multiple documents and came to know it is supported only on Android devices and Apple devices.How can we conclude this whether DVO-R feature is just supported on Android and apple devices ?
We have a customer who is having CUCM ,expressway and UCCX VMs on (ESXI 5.5) C220 M3 server and they are planning to migrate it on the new server i.e. C220 M5(ESXI 7.0). If we migrate it through PCD then what will be the licensing status of CUCM on t...
We have a requirement on of our customer wherein they have ISR 4331 router working as CME router and they want to register the analog VG 310 gateway with it. Is it possible to do this and how do we do it ?
Customer has introduced firewall in the network and post this there is no voice for inbound PSTN calls & also outbound PSTN calls gets disconnected in a sec while dialing,and there is a SIP trunk between Cucm and VG . We have shared the ports details...
Hi, We are trying to register the phone manually and even gave the tftp ip statically but still observing the same options of provisioning a new phone and replace an existing phone. We also tried to change the on premise device onboarding under devic...
Hi Roger, Customer is using the router for WAN as well as voice services for PSTN with SRST. And they had put the firewall in front of this router and ,for testing purpose they had set the rule to Any to Any but still the outbound PSTN call is gettin...
Hi Maren, They are using the same subnet for data and voice so after introducing the firewall in front of the Gateway they configured the same IP(of Gig 0/0.100) on the firewall and kept the Gig 0/0.100 interface administratively down so for testing ...
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