IP Telephony and Phones

Hi,I'm having a weird problem with faxing using the 2921 series router with a 4 port FXS card. This is a new site install in South Africa .You can succesfully make the outbound call from the FXS port and the other end will answer and the intial conen...

Dear All,I currently have a voice network set up such that some IP Phones are on the same VLAN as the IP address of the Call Manager Express while some phones register over the WAN but on a different VLAN as the CME. All phones are SIP PhonesThe issu...

Hello,I've been having some weird behavior with a recently implemented CME solution on ISR4331, all 8851 phones.1) group pickup activates call forward to the first digit of the pickup group (the pickup is successful)2) a call transfer from phone A to...

I am mostly a network guy, so please forgive my lack of understanding. When RTP packets leave a router from a loopback interface that involved in NAT, it appears that the source IP remains unchanged. We were attempting to solve a NAT/SIP issue where ...

I have Cisco Emergency Responder Administration System Version: 11.5.4.40000-2I am getting the following error which I know mean I need to renew the license but I want to know how it relates to the issue that I am seeing.Here is the error - The syste...

I have added an EnGenius SIP Durafon phone setup to our manufacturing environment to handle remote coverage for roaming supervisors, where no WiFI is available.  The phones work great, but I do not get a dial tone after pressing 8 for an outside line...

Dear All,I am planning to enable persistent chat on Jabber, but I would like to test it with 1 or 2 users before I make global changes. Could you assist me with this, please.Thanks in advance.Regards,Syed 

Hi everyone !i need just one information.What is the higher version CCX supported by client Wireless Ip Phone 8821 ? To use CCX version 4 for exemple, do i need a specific licence or basic is accepted ? The reason:  with my AP 1832I + IP Phone 8821, ...

Here's the basic background:The remote site as two connections back to the data centers.  Single DMVPN cloud per transport.  Transports are MPLS and Internet.  On the Internet side there is a device, inline, that encrypts the GRE traffic (long story,...

Hi, I got one GSM gateway device with many simcards that has a shortcut number ( 0xx12345678)I want for any calls coming on this number to be translated into internal extension (1000) can you please help me what should I do on the Router in order to ...

Am trying to call from CME to CUCM getting the below error. Calling from CUCM to CME is successful. Below are the logs while calling from CME to CUCM(Version-7) which is not successful. Please advise. 015022: Sep 30 15:18:56.787: //218719/4EA4AE8283F...

Hello, An update/upgrade was done to some of the phones in our call centre on Friday, and today some of our CSRs are having issues with their hard phones.  Several times when they have received calls, after the customer hangs up their headsets sound ...