IP Telephony and Phones

I have a stange issue where I have periodic call drops during call setup. Happens on PRI and POTS alike and I have seen it happen once or twice on phone to phone. Its Random. Calls dropped looks like normal call clearing. This is on a CME version...

Hello we are running Verizon SIP into CUBE gateways and have run into the following issue:Verizon's techs are testing with this sequence:- Call gets connected with G729 codec. Both parties hear each other fine- Verizon tech sends a fax tone through t...

Hi Friends, We have installed CCM 6.1.2 in a centralized mode...We have 6 Branches that is connected via MPLS with Minimum of 2 MBPS of Link.. In All 7 Places (including the DC where CCM cluster is installed) we have created 7 Device Pool, 7 Region, ...

hemos presentado dificultades con la telefonia Cisco IP Phone 7940 series ya que llegan llamados entrecortados o ruido, se ha revisado red, enlace, proveedor telefónico y electrico y falla se produce solo para la persona que recibe el llamado desde...

Hello Everyone,I have a 2811 and a 2801 that I need to swap DSP modules on. One is a bigger chip than the other. Other than gaining the additional resources on the router that needs the bigger chip is there anything I should look out for? This shoul...

Hi,I want to block some users calling any offnet calls, only on-net calls can be done..Can some one help me with a single pattern that can solve this issue...I currently achieved this using multiple Route Patterns...I want to block: 900!, 905! & 90[2...

Hi,I would like to upload company Logo to IP phones...Can someone guide me with the steps for doing so!!

Is there a way to figure out what the DHCP lease time is on a 7970 series VOIP phone?

But the problem i am facing is that: the conrefence profile is not taking the command " maximum-sessions" & hence the profile shows down all the time...Plz find the sh run of the router & suggest...============================================Building...

Hi,We have a CUCM 6.1 setup with 1 pub+ 1 sub, and oflately I have discovered that I can't run RTMT from my workstation.I have uninstalled and installed the RTMT and Jave from my machine yet nothing seems to be resolving this issue.I have attached th...

Outside user call Call Center on for example 345567. After welcome ton he has possibility to chose 1, 2, 3, 4 and 5 option. How can I forward DTMF tone (as above) from PSTN over ISDN PRI (IOS MGCP Gateway) to CUCM then to SIP trunk to third party Cal...

Hi All,I am experiencing the high CPU utilization (approximately 60%) with Publisher (CUCM version 7.1) .we have one Publisher and two Subscriber. The subscriber CPU utilization is below 20%. All the devices are registered with subscriber. All the tr...

Hello,I have 2N ISDN LITE GSM Gateway. Two sim cards with some free minutes. I want to load balance between both cards. There is a thick that on the GSM GW that says 1 SIM on 1 B-chan, 2 SIM on 2 B-chan. I'm wondering is it possible to configure logi...

Hi,I have a requirement like: for every end user there will be a separate FAC code for ISD dialling. If he wants to dial out any ISD number, then he has to use only his assigned Phone along with the FAC..With his FAC he can't use any others IP phone....

I've seen some previous questions regarding caller ID and extension mobility. I just haven't seen one wherein it was a success. If someone calls the internal IP phone and EM forwards to a cell phone, why does the cell phone not show the original call...