I've a group of 5 FXO on a 2821 controlled via MGCP. Each mgcp is connected to an old cellulink, and when I dial using them, the first digit is randomly dropped. I must send 8 digit through the cellulink, but sometimes arrives only 7.
I've checked with show voice call status, and always 8 digits are sended, but on the cellulink screen I can check that sometimes arrives only 7.
It happens in any of the 5 FXO voice ports randomly.
I've readed that it's a problem with the timing digit or timing inter-digit with old cellulinks, but I've tried different configuration for this without any result.
I've also 2 new cellulink connected with another FXO ports, that works without problem.
CCM is an 5.1(1) version and 2821 has a 12.4(3)g IOS.
If you have a solution for this please let me know.
It does sound like a timer setting.
My first guess would be pre-dial-delay. The default is 1 second, maybe try 2.
Is that doesn't help try timing digit and timing inter-digit
The default is 100ms, maybe try 150.
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