
I'm having trouble with a very specific SMS deliverability issue. I've built a little system that tests all of my DIDs to ensure SMS deliverability and measure round-trip time. 1. I have 3 DIDs from Carrier A; LRN says Bandwidth.com. Used as Test Source DIDs. 2. I have 20-30 DIDs from Carrier B: that do not receive SMS messages sent from #1 DIDs; These DIDs LRN says Bandwidth.com. Used as Test Destination DIDs. 3. SMS messages sent from Carrier A DID to Carrier B DID are never received Bandwidth won't talk to me about this issue because the DIDs involved are not in my account. Frustrating, but understandable. The question that I can't seem to get either direct carrier to answer is who is in the middle. Carrier A reported: "Our SMS carrier investigated the SMS delivery issue to the numbers you reported and confirmed that they are routing the messages correctly but these are intentionally not being delivered to the TN's (Terminating Numbers) by the terminating carriers. They say that if any of these receiving parties are stating that they should be receiving any messages, they will need to reach out to their provider." Well, _I_ am the receiving party, and despite tickets open with both carriers for 3 weeks, I'm getting no where. Carrier A won't tell me what carrier is "intentionally not" delivering SMS messages. Anyone on list have any insight? Beckman --------------------------------------------------------------------------- Peter Beckman Internet Guy beckman at angryox.com http://www.angryox.com/ ---------------------------------------------------------------------------

On 9/21/15 3:37 PM, Peter Beckman wrote:
I'm having trouble with a very specific SMS deliverability issue.
The question that I can't seem to get either direct carrier to answer is who is in the middle. Carrier A reported:
"Our SMS carrier investigated the SMS delivery issue to the numbers..."
This seems to be the norm when trying to troubleshoot just about anything VoIP. Carriers steadfastly refuse to name the route that a call takes. Very frustrating but it seems to be the standard practice. "We have opened a ticket with our upstream carrier who shall not be named...." (Voldemort?) -- Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net Impulse Internet Service - http://www.impulse.net/ Your local telephone and internet company - 805 884-6323 - WB6RDV

I don't mind that they don't tell me when things are A-OK; they don't want to divulge their sources lest I run off and get a contract directly and cut them out. But I _DO_ have a problem when things are NOT OK and they DO NOT take ownership of the problem. Three weeks is not an acceptable SLA. Beckman On Wed, 23 Sep 2015, Jay Hennigan wrote:
On 9/21/15 3:37 PM, Peter Beckman wrote:
I'm having trouble with a very specific SMS deliverability issue.
The question that I can't seem to get either direct carrier to answer is who is in the middle. Carrier A reported:
"Our SMS carrier investigated the SMS delivery issue to the numbers..."
This seems to be the norm when trying to troubleshoot just about anything VoIP. Carriers steadfastly refuse to name the route that a call takes. Very frustrating but it seems to be the standard practice.
"We have opened a ticket with our upstream carrier who shall not be named...." (Voldemort?)
-- Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net Impulse Internet Service - http://www.impulse.net/ Your local telephone and internet company - 805 884-6323 - WB6RDV _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops
--------------------------------------------------------------------------- Peter Beckman Internet Guy beckman at angryox.com http://www.angryox.com/ ---------------------------------------------------------------------------
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