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Hardware Conferencing
To make use of DSP resources for a Conference Call, we will have to enable Conference Bridge at the gateway. Configure the following at the gateway: voice-card 0 dspfarm dsp services dspfarm sccp local...
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MOH Configuration
Music on hold is a very useful feature in Call manager which is used for streaming music when you put a PSTN phone or an internal IP phone on hold. I will discuss briefly how it is configured and how...
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MOH Issues and Resolution
There are quite a few issues which you may come across while configuring Music on Hold. As of SRST/ITS 3.0 an IOS branch gateway has the capability to function as a multicast Music on Hold (MoH)...
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Uploading MOH file CUCM 4.x
Upload the music file 1: First have your music file recorded as an 8 Khz, 8 bit, mono ulaw encoded WAV file. 2: The next step is to get your music file on to the Call Manager server. Copy your...
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Scanario#8 – New MOH file not working
MOH file uploaded on Pub under MOH Audio source with number # 5. Customer came back saying that he cannot hear the new announcement as per the new file. I tried to select the file under UDP, Phone and...
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Changing MOH file for CME router
If there is already a MOH file running at the CME router, follow the below steps to change it to a new one. Sh flash: 55 7200 Dec 09 2008 10:53:52 Pulse1.raw 56 4000 Dec 09 2008 10:53:54...
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DSP, PVDM & Media Resources
The Cisco High-Density Packet Voice Digital Signal Processor (DSP) Module (PVDM2) enables Cisco Integrated Services Routers to provide high-density voice connectivity, conferencing, and transcoding...
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Scenario#24 – SIP Calls drop after Silence
Came across a complex situation where customer was using this SIP trunk as an alternative to ISDN-30 (if all channels are used or if ISDN goes down). The ISDN-30 link was working fine but they had...
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Scenario#25 – MoH file download from Call manager
Came across an MoH issue for a customer where the file was missing from Subscriber. As you may be aware that an MoH file should always be uploaded across the cluster on each server to work properly. If...
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Scenario#29 – Interworking error -0x80FF
I came across this issue with one of our customer last week where a call was coming in to receptionist at Site ‘A’ but she was not able to transfer the call to someone at Site ‘B’. They had...
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