Voice over IP

We seem to have a problem that during our multicasting sessions (image deployment) in Singapore and Hong Kong the phones randomly keep resetting (they appear to be switching from the phone to the internal computer VLAN). This is happening while the p...

We recently bought brand new 7945G phones from Cisco and we cannot get them to registered. We have configured our server to use TCP and we are using the most recent firmware on the phone. I am thinking something is wrong with our SEP.xml config file....

Hi Experts, what is the default value of carrier delay timer of E1 controller?In which way can i change this value?Regards.

Hi everyone,we are trying to figure out a way to forward incoming fax calls from a specific number to an analog fax connected to a vg224.History: We have big issues with faxes incoming from one company. To rule out all the options we've already check...

Hi,We placed a Debug Ip Packet detail in ACL (any to host destination) but RTP traffic wasn´t see.Rtp session is stablished and debug rtp packets is a hard debug. Debug ip rtp ip and port is not enough information about packet.Sniffer is not possible...

hey fellows, have anyone came across strange phantom calls issues involving PRI switches. issue reported: several times per day all phones in the office will start ring repeatedly and caller ID will present something like 5 or 555 string true that it...

Buen dia,Actualmente en la empresa donde me encuentro realizando mis practicas estamos desarrollando QoS para la telefonia IP la cual se hace mediante softphone,  el softphone utilizado es Xlite 3.0 el cual  envia los paquetes de voz marcandolos con ...

I have a Cisco 3740 with CME 8 and NM-2 2 FXO 2 FXS ports.  I want to enable caller-id on the rouer, but when I issue for caller-id enable command under the FXO port the router tells me that command is invalid.  I don't really know where is issue is ...

Hello!Diagram is something like this:  Softswitch(MERA) -->>-- Cisco1760 -->>-- Softswitch(MERA)   It's needed to limit traffic if one of SSWs is hacked. But it is not a subject. We just need such "construction".1. Voice calls are sent and received f...

Hi All,Does anyone know the correct way to calculate WRED min/max thresholds and MPD ?I am using a WAN example where I follow 12 CoS CBWFQ and want to ensure the WRED (random-detect DSCP etc) is setup correctly.Any tips or advice on how to measure or...

Any thoughts why when I have a user calling from site to site there number appears as:From 6504554254 User+14721I looked at the translation pattern and there's nothing that would change them. I'm thinking a router pattern, but not 100%. Thanks in adv...

    I'm having the five issues listed below. These issues have been going on for months, but recently have become more frequent. Not new to Cisco, but new to this area of voice communications. Previous adminstrator left company wil little to no turn-...

Hi,I wish to add a service number so that when a user dials 101 from their handset in the UK they will be connected to the local non emergency based police line.I have read online that it might need to be done via digit manipulation, but are there an...

We need to change the IP address on our CUCM publisher server.  In the past it broke the Presence server integration and required a rebuild of the Presence server.  Is there any documentation on the steps for the process of making this change.  Or ha...