I am aware of similar problems. IDDD calls are compressed by the carriers to reserve bandwidth for voice calls (the carrier does not know your call is for data). Your call could be going via a compressed route between IDDD carriers. In the UK, an additional 0 (zero) prefix is required to request a full 64K channel. EG dial string is 0001 xxx yyyyyyy for calls to US.
Also you would be surprised at what bandwidth PTT/carriers have for their interconnections. If you need to bundle a few 64K channels together this could result in capacity problems, and the normal call clearing message will be seen in the Q931 debug.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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