IP Telephony and Phones

We have two Cisco 8845 phones in our environment, the rest are 7900 phones. If the internet goes down for whatever reason, the 7900 phones go into limited functionality mode and will not allow any calls to be made or received. The 7900 phones will fu...

Hi, We have a client with a BE6k. We created a Personal directory on Call Manager (Device / Device Settings / Phone services). After we created a “Phone button template” (Device / Device Settings/Phone Button template) that conteins the Services URL....

All, I have a situation with an outbound FXO call failing. I have collected debugs and can see the following: Feb 21 15:34:25 GMT: Orig called num:399Feb 21 15:34:25 GMT: htsp_process_event: [0/1/0, FXOLS_ONHOOK, E_HTSP_SETUP_REQ]fxols_onhook_setupFe...

I have a TAC case opened but I do not think the engineer assigned is completely understanding my questions on how to properly upgrade a dual bank/boot cisco IP phone such as the cisco 8811. I do have the documentation below on how to upgrade a single...

We had a e1 r2 with 8 channels working fine, we replaced the signalling to ISDN because r2 have high delay to setup a call, but now the calls are not working anymore, the debug ccapi show that all digits are been send to E1, does not matter haw many ...

We configured 3 hunt groups in cme with sip phones 7821, any phone ringing in group1 that expires the timeout have to be transfered to phones from group2, and after another timeout be transfered to group3, and in another timeout be transfered to grou...

Dear all, We experience a strange problem, sinds a while our cisco mobile phones 8821 and 7925 types loose their connectivity with the other side of the line. Some cases they have one way audio, customers cannot hear them anymore. we have A cisco w...

I have a 2921 as a voice gateway. I have configured e1. When call comes from PSTN,  I am getting the following message on the gateway " 000243: Feb 20 17:04:24.090: ISDN Se0/0/0:15 Q931: RX <- SETUP pd = 8  callref = 0x000E         Sending Complete ...

How can we filter or remove the prefix of +9 when transferring a call? Currently when we transter a call from our work phones to cell phones, caller ID shows the number and +9. Normally, to dial out we have to put a +9, but the prefix should not have...

Hello,   i have a probleme with my uc500   we have a contract with belgacom for 20 numbers public phone.   we have connect the "box" off belgacom on 2 port bri 0/1/0 and bri 0/1/1.   the problem is :   - all call in icoming is impossible. when i call...

Hi, I have the following scenario: A CUBE is used to route calls from A to B. A monitors the connection to the CUBE with SIP Option Pings, as well as the CUBE monitors the connection to B. If the connection between the CUBE and B is broken (for insta...

Does anybody know why Duplicating RTP Streams (rfc7198) is used for voice RTP from Cisco IP Communicator on my PC? Is it controlled by any Cisco or Windows (Lync 2013) setting? I found (using Wireshark) that the Duplicating RTP Streams are used from ...