IP Telephony and Phones

I currently have several 2821 routers located across multiple sites. The routers are only used for outbound 911 calls. They have 2 analog phone lines attached to a 4 port FX0 card.  I have been using the csim command to remotely test to make sure the...

Need the RAID level for Communications Manager 7.x running on a MCS-7835-I2. Any assistance is greatly appreciated.Brian

I have a customer with 700 phones running on CM 7.x wants to change phone configuration in 200 phones all at once just overnight . It is not like changing a DP or changing templates if it is I can use Bulk Admin Tool but these changes are significant...

HI,I have installed an MCU 3515 in order to use it for videoconference but it doesn't register with the callmanager!I have configured the MCU with CLI, gave IP addresses for the two cards : MC and EMP,i configured the right masks,.. i have added the ...

What does this mean? It occurs infrequently and intermittently but occurs non the less.User has a 7940 with two line appearances. She is in a pickup group.On occasion, when she gets a call, a lowercase n appears just to the left of her active line (n...

Could any one tell me why cisco use T38FaxMaxDatagram: 72 in sip's sdp?  Why 72?I've an issue with t38 cisco+asterisk, 72 is too small for asterisk! 72 is too small at all.T38FaxMaxDatagram:Send: The T38FaxMaxDatagram attribute MUST be included. The ...

Dear all,I am very new to CISCO and would like to learn more. Below is my questions regarding IP telephony.How can I configure my Cisco to assign a DDI number 6123456X to go to IP. 192.168.239.121 whereas the rest of the DDI number being routed to 19...

I have a CUBE running 15.0(1r)M1.   ISP is SIP coming and SIP out to CUCM 8.x.   When I run debug DTMF at the router, I see the digits being pressed.  So Im assuming they are coming, but are they coming in the correct format such as 2833, Im not sure...

Hi,we have CCM 7.1 and one H323 voice gateway connect to AVAYA BPX with PRI E1.another H323 VG connect to PSTN with PRI E1.our all ipphone in region A,PSTN's voice gateway in region BAVAYA's voice gateway in region C.codec design as next:G.711: A<-->...

I have a T1 CAS that for some reason we cannot dial out of.  I have tested timers, performed debugs (which show successfull call) and not much is helping me locate the problem.I have another that works fine...The problem T1 send the call, but a telco...

We have 2610 Router connect to a PBX system in remote site extension start with 5xxx in this site can not call users in some remote site ( not all remote sites) but it do call users in main site . I have make a debug look like the call is disonneted ...

Hi,We have an error when try to upgrade CCM to 6.1.2:09/13/2010 12:40:17 CCMInstall|(CAPTURE) cm-dbl-install [1]|<LVL::Debug>09/13/2010 12:40:17 CCMInstall|Internal Error, File:instMain.c:1354, Function: handlePhase(), Failed to exec command: "/partB...