We have found strange outbound dialing issues , no impact or response on dialing extension after receiving AA messages .
Solved by changing MTP setting on both CUCM and gateway router ( for PRI ) . Steps are shown below .
COnfiguring MTP in CUCM
----------------------------
1.Configure Voice Card
router(config)# voice card 0
dspfarm
dsp services dspfarm
codec complexity flex
2.SCCP configuration.
router(config)# sccp local <lan interface of cucm>
sccp ccm <ip address of cucm for which the mtp should be registered> identifier 1 version <version of cucm using>
sccp
3. DSPFARM profile creation.
router(config)# dspfarm profile 1 mtp
maximum sessions <number of sessions provided>
associate application SCCP
codec g711ulaw
no shutdown
4.SCCP group configuration.
router(config)# sccp ccm group 1
bind interface <lan interface of cucm>
associate ccm 1 priority 1
associate profile 1 register MTP_<IOS Router hostname>
Configuration on BE6000
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1. Login to CUCM.
2. GoTo Cisco Unfird Serviceability.
3. Activate MTP Services.(this will automatically create an MTP profile)
4. GoTo Cisco Unifed Communication.
5. Tick the checkbox "Enable Media Termination Point" in Cisco trunk configuration.
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