Hello,
I configured a 2620 router with BRI S/T TE and NM-2V voice module for VoIP applications using H.323 gateway and gatekeeper. The router runs with IOS 12.2(3).
When estabishing a call from a H.323 phone to the ISDN network the Q.931 SETUP message is encoded u-law in the Bearer Capability information element although the H323 phone generated the call with a-law and the dial-peer voice voip was configured for codec g711alaw.
The "sh voice dsp" shows "g711alaw". In European ISDN a-law is required.
Could anybody give me advice. Thanks