Outbound H.323 calls failing with Cause Value=47

[Cdbakken1]

Scenario:

User lifts handset dial number (local, LD, Int, toll free, doesn't matter) and hears a fast busy. User hangs up, lifts handset dials same number and call processes normally.

Call Manager version 4.2(3)sr4b

ISR Gateway Cisco 3845 12.4(15)T3

I belive this has something to do with my dspfarm configuration, see below.

pxcrahrt1#sh run | sec dspfarm

dspfarm

dsp services dspfarm

dspfarm profile 1 transcode

codec g711ulaw

codec g711alaw

codec g729ar8

codec g729abr8

codec g729r8

maximum sessions 13

associate application SCCP

dspfarm profile 2 conference

description NM-DSPFARM Conference Bridge

codec g711ulaw

codec g711alaw

codec g729ar8

codec g729abr8

codec g729r8

codec g729br8

maximum sessions 2

associate application SCCP

dspfarm profile 3 mtp

description MTP resources for SIP trunks

codec g711ulaw

maximum sessions hardware 40

associate application SCCP

[jbarcena]

47 = Resources unavailable, unspecified

The requested channel or service is unavailable for an unknown reason. This might be a temporary problem.

What type of connection are you using? T1 CAS, PRI, E1?

[Cdbakken1]

This issue was requested by reallocating the available DSP resources.

Thanks

[Cdbakken1]

This issue was CORRECTED by reallocating the available DSP resources.

[eoinwhite]

Im seeing the same issue over 4 BRIs. What was wrong with your DSP config and what did you change to fix.