[asterisk-users] PRI timing settings

Scott L. Lykens scott.lykens at kmmsinc.com
Wed Aug 20 07:58:42 CDT 2014

On Aug 19, 2014, at 5:56 PM, Jeff LaCoursiere <jeff at jeff.net<mailto:jeff at jeff.net>> wrote:

I wrote earlier today about a new PRI installation in the Caribbean, where all outbound calls are functioning fine *except* calls to Sprint phone numbers, which get rejected immediately as "busy".

I don’t know what expectations for CLID your carrier might have, or for that matter the upstream carrier, however, we found through our CLEC here in the US that while the CLEC was happy to take e.164 formatted numbers from us as CLID, Global Crossing would reject them further upstream resulting in our calls to many toll frees being rejected.

Switching to 10 digit CLID on all outbound calls through that PRI solved the problem.

I don’t know if this is your problem but be sure your CLID is in the most simple format possible for your region to help rule it out.

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