Voice over IP

I’m trying to figure out how to calculate the Rating Factor or MOS of a Cisco VoIP Call. Here is the formula from ITU G.107: R = Ro - Is - Id -Ie + A ----------------------------------Ro = Signal-to-NoiseIs = Simultaneous Impairment factorId = Delay ...

I have a PGW installed,I keep getting this alarm on the PGW; ISUP T15 expired for a particular customer signaling service.Calls were failing with disconnect cause of normal unspecified/normal call clearing, also,few calls were connected with short du...

Is the recorded name stored in the schema attribute msExchRecordedName for unified messaging configurations? Or is it only stored for voice mail only configs?

Hi all,i have an as5350 carrying voice traffic normally, but quite often, the E1s carrying traffic go down and come back itself again. The ios in it is a c5350-is-mz.123-6c.bin. On going through the log history, i got the following me...

Hi guys, just like to ask about my problem. I connected a 2600 router to a PABX via ISDN PRI in the HQ (customer), and all remote networks are able to call through to the local office in the HQ. My problem is, remote offices should be able to call th...

Hi All,I would like to know if it is possible to change the digits sequence of the calling number on a H323 call.My equipements are as5300 configure with dial peer pots and dial peer voip.Thanks

Hello,we are planning for a VoIP/IPT managed services with Cisco parts.Are there any best practice products and solution we should care about.Also we are interested in billing solutions for managed services (voice service providing)many thanks in adv...

Is there a Cisco solution to relay/translate between RTP sessions? I will have an application which will handle the signalling itself between VoIP end devices but would like to use a professional equipment to connect the medaia streams transported in...

Does anybody know what RASCAL stand for? What's the purpose of this, it looks like it provides statistics/monitoring kind of function. Does Cisco have a document describer each of the IPCC service in detail? thanks

HI, I need to configure the Router 3640 that Gateway SIP with 3 ATA 188. Here the versions(1) Router 3640 12.2.27 (GD) Enterprise Plus 1 PTO WAN 2 PTO Fastethernet(3) ATA-188 Ver. 3.0 SIPThe Router will be SIP Gateway the ATA´s.The Router d...

Based on this config, what would be the QoS values assigned to a packet originating from a directly connected IP Phone?class-map match-any VOICE match access-group 170!policy-map VOICE-EDGE class VOICE set ip dscp 46!interface fa0/1 service-policy i...

My AS5XXX gateway with 8 E1s were connected to PSTN,once the gateway start pushing traffic we discoveredthat the E1 is deactivated one after the other.Below is the error message I received when I did show logging:00:24:33: %ISDN-6-DISCONNECT: Interfa...

Hello.I would like to define two routes to the same destination-pattern. i did it by entering two routes on the "Routes" section of the CSPS GUI, both of them point to the same destination-pattern, but one of them has the priority of 1 and the other...

We have an AS5350 and would like to use it for an automated out bound call campaign. Below is a description of the application:1) The phone numbers are stored in a database. 2) Each number on the database is called (possibly simultaneously to utilize...

I have an enterprise network that consists of 6509 (8.22) msfc (12.2)To run voip on the enterprise is it essential to enable qos? Management wants a case why this should be enabled Our utilization on our wan is 5-10 percent. Will qos matter if we hav...