Much thanks for you spent time to answer my question.I set the "E1 Enhanced Card" on VG200 for MGCP and work with CCM3.3.2.Also the IOS of VG200 has been upgraded to version 12.3<3a>.But this error also will generated of each B channel.Could you help...

Hi, All.I have a question. I want to know that may I configure 2620 router as a CallManager . Because there are two 7960 Ip phones we have . I want totest voice quality between link without CCM system and wish can use SCCPon these two 7960 Ip Phones ...

I have Unity 2.4.6 (126) . But current we are using CCM is 3.2 (1) . After upgrade CCM to 3.2 . Unity System was stop .So, It will NOT workable . Does anyone can tell me how to setup it to work with right AvTSP andCCM-TSP or others methos I can do ?A...

Unity 2.4.6 voice message system and CM3.1(1) MOH arework fine at local (LAN and PSTN).But the answered voice can't hear anything if via Frame Relay connection bentween two sites (G.729).I have setup the MOH codec to G729 .But still can't work.

We have a DID T1 Trunk line.We want to use RJ45 to connection with W6608 voice T1 blade. T1 DID HTU-R device has two pairs(in).I want to know what the pin number of RJ45 we should link together ?