IP Telephony and Phones

Hi, im wondering, is there an easy option for using old cisco phone like 79xx series as an 'extension' for smartphone? Like cell 2 jack for old landline phones?

i have a cisco r4321 with cme with a few phone 8800, i already setup the extensions, but im unable to pickup a call from another phone, i share my setupvoice register dn 1number 100call-forward b2bua all 110call-forward b2bua busy 110call-forward b2b...

Hello! question, would a cisco 7941 power supply work for a cisco 7821?

Hi,At the moment we don't have any installations using CUBE Smart Licensing, they all use the older trust based licensing where there's basically no enforcement at all.  However a few installs are on ISR4xxx routers and I understand that at some poin...

Dear Team,Unable to make video calls from cisco IP phones (8865) on cisco VG 4331. Voice calls are working fine.   

Hello all I've recently purchased a ATA191-3PW-K9 to work with an existing analogue phone. I want to set the IP addressing up so it can connect to my network, however I can't seem to be able to access the webpage via it's default IP address From read...

Hi everyone, we have several 56x headsets in use and some have heavily degraded battery performance (less than 1h talking time). Is it possible to order replacement batteries and/or repair them? The devices are "almost unused" and it would be a pity ...

Dear Members,I have a Vodafone UK Landline; I was able to successfully configure it on Grand Stream HT812. When I use an analogue phone, everything works perfectly. Inbound & Outbound calling works, and also the caller ID is working perfectly. Now, W...

Hello,So I am moving the CP840 wireless phones from Cisco CUCM to Webex calling and I am having a really difficult time with something that should be simple. I followed the instructions on the webex knowledge base to onboard these devices to webex ca...

Hello,Currently, we do have sub and pub of CCUM and CUC set up with IPs. Is it going to be a headache to change them to FQDN?I wonder if that includes reinstalling new certs if we change IPs to FQDN?  

Dears,I was looking in my cucm Certificates and I found that the tomcat.pem certificate is expiredValidity From: Tue Apr 18 15:19:19 AST 2017To: Sun Apr 17 15:19:18 AST 2022and according to the documentation theService Impact by the Certificate Store...

New IP 8821 phones frequently come up with failed calls due to "network busy", though sometimes calls work fine.  7925 phones operate all of the time.  The wireless config is unchanged in several years - MAC authentication, Platinum QOS, no CAC, WMM ...

Hi guys.Solution needed. Let's imagine the customer with CUCM, let it be 8.5, CUCCX of version 8.0 for example and ZOOM CallRec. There are some users in the system who are CCX agents and there are some who are not. I need a solution to play an announ...

Hi All ,I have 5 devices from cp-8945 and one switch 2960 POE and one router 2900 and need to communicate all 5 devices with each other any advice .Appreciate your help.A.H