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Category Archives: Gateways

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Inbound and Outbound calls not working in H323 Gateway

Inbound and Outbound calls not working in H323 Gateway I have come across a situation where am unable to make inbound/outbound calls. Here is the call flowPSTN—VG-H323—MPLS—CUCM This is debug of the actual failed incoming call *Aug 9 06:10:03.923: //357/CCB999A780A0/CCAPI/ccSetMediaclassIp2ipTags:media class tags set: NR 0,

Troubleshooting DTMF in MGCP and PRI

WHAT IS DTMF? DTMF (Dual Tone Multiple Frequency ) is used to send signals for button presses on telephones. The data is typically sent over voice channels and so in order to distinguish from a human voice, when you hit a button the phone generates

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Configure Mobile Voice Access

Have heard about MVA(Mobile Voice access). Yes, the talked about topic quite a while ago. I thought to cover this with you’ll. In nutshell, mobile users would first access the CUCM to place outbound calls.By accessing Call manager from their mobile device, the end user

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Switching between MGCP and SIP

I have come across a situation where i have to create a sip trunk to External Contact center in the existing MGCP gateway.I have created basic SIP configurations and dial peers to CX. However when a make a incoming test call it isn’t hitting any

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Top and Most useful Cisco Voice IOS Commands

Top and Most useful Cisco Voice IOS Commands If you are working as a Voice Engineer or planning to learn Voice or may have an interview, the below list of commands are the ones which are most commonly used by Voice Engineers. These commands are