
Hi All: We are being told by Level3 that if a Canadian DID calls a Canacdian TF number, they cannot guarantee call complete and its best effort. Anyone else run into something similar?

We have trunks with a few canadian providers and route calls from canadian source numbers to TF calls exclusively over trunks to canadian providers. Usually that solves the issue. On 1/22/2015 10:39 AM, Ujjval Karihaloo wrote:
Hi All:
We are being told by Level3 that if a Canadian DID calls a Canacdian TF number, they cannot guarantee call complete and its best effort. Anyone else run into something similar?
_______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops

I thought it worth sharing some feedback from a coworker who has been doing this a few decades longer than myself: "First, there?s no such thing as a ?Canadian? TFN. There are NANP TFNs that can, in theory, be dialed from anywhere in the NANP. Due to massive cost differences, NANP telcos allow TFN owners to restrict dialing to certain areas ? 48 states, AK, HI, Canada, USVI/PR, Caribbean, or any combination thereof. "Second, it doesn?t matter what the ANI of the calling number is. What matters is where the call is dropped into the PSTN. Thus, if a TFN that is restricted to Canadian callers only is dialed, and we drop that call off to one of our US TF Termination vendors, the call will be blocked, as the first PSTN vendor in the line does an SMS dip, sees this TFN is restricted to Canada dialers only, sees the call is entering the PSTN in the US, and rejects it whether the calling number has a Canada NPA or a US NPA." I hope this helps you find a solution. --Calvin, a voice services engineer On Fri, Jan 23, 2015 at 8:38 AM, Ryan Delgrosso <ryandelgrosso at gmail.com> wrote:
We have trunks with a few canadian providers and route calls from canadian source numbers to TF calls exclusively over trunks to canadian providers. Usually that solves the issue.
On 1/22/2015 10:39 AM, Ujjval Karihaloo wrote:
Hi All:
We are being told by Level3 that if a Canadian DID calls a Canacdian TF number, they cannot guarantee call complete and its best effort. Anyone else run into something similar?
_______________________________________________ VoiceOps mailing listVoiceOps at voiceops.orghttps://puck.nether.net/mailman/listinfo/voiceops
_______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops

I?ll politely interject the ANI of the originating number does matter as the SMS routes the call based on the ANI and originating LATA. Occasionally a toll free number might be CIC?d to a carrier that the originating switch does not interconnect to. If you don?t have trunks to that carrier obviously the call will fail but the toll free owner (RESPORG) can change that CIC. If you have the ability to launch an 800 query it will tell you the carrier based on the ANI and LATA. The below webpage may be helpful and will provide a trouble reporting number for any given toll free. http://search.tollfreenumbers.com/Lookups.asp?acode=8**&pnumber=8002257073 From: VoiceOps [mailto:voiceops-bounces at voiceops.org] On Behalf Of Calvin E. Sent: Friday, January 23, 2015 1:33 PM To: voiceops at voiceops.org Subject: Re: [VoiceOps] Canadian TF termination I thought it worth sharing some feedback from a coworker who has been doing this a few decades longer than myself: "First, there?s no such thing as a ?Canadian? TFN. There are NANP TFNs that can, in theory, be dialed from anywhere in the NANP. Due to massive cost differences, NANP telcos allow TFN owners to restrict dialing to certain areas ? 48 states, AK, HI, Canada, USVI/PR, Caribbean, or any combination thereof. "Second, it doesn?t matter what the ANI of the calling number is. What matters is where the call is dropped into the PSTN. Thus, if a TFN that is restricted to Canadian callers only is dialed, and we drop that call off to one of our US TF Termination vendors, the call will be blocked, as the first PSTN vendor in the line does an SMS dip, sees this TFN is restricted to Canada dialers only, sees the call is entering the PSTN in the US, and rejects it whether the calling number has a Canada NPA or a US NPA." I hope this helps you find a solution. --Calvin, a voice services engineer On Fri, Jan 23, 2015 at 8:38 AM, Ryan Delgrosso <ryandelgrosso at gmail.com<mailto:ryandelgrosso at gmail.com>> wrote: We have trunks with a few canadian providers and route calls from canadian source numbers to TF calls exclusively over trunks to canadian providers. Usually that solves the issue. On 1/22/2015 10:39 AM, Ujjval Karihaloo wrote: Hi All: We are being told by Level3 that if a Canadian DID calls a Canacdian TF number, they cannot guarantee call complete and its best effort. Anyone else run into something similar? _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org<mailto:VoiceOps at voiceops.org> https://puck.nether.net/mailman/listinfo/voiceops _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org<mailto:VoiceOps at voiceops.org> https://puck.nether.net/mailman/listinfo/voiceops

Calvin This is exactly how it works. ANI doesn't matter (although some IVRs also have application based ANI filters) We work with contact centres on both sides of the border, who often transfer to TFNs, and we had to hard code trunks for specific TFNs as there are also US based numbers that do not take traffic from Canadian trunks. It is a pain in the ... On 23 Jan 2015 14:33, "Calvin E." <calvine at gmail.com> wrote:
I thought it worth sharing some feedback from a coworker who has been doing this a few decades longer than myself:
"First, there?s no such thing as a ?Canadian? TFN. There are NANP TFNs that can, in theory, be dialed from anywhere in the NANP. Due to massive cost differences, NANP telcos allow TFN owners to restrict dialing to certain areas ? 48 states, AK, HI, Canada, USVI/PR, Caribbean, or any combination thereof.
"Second, it doesn?t matter what the ANI of the calling number is. What matters is where the call is dropped into the PSTN. Thus, if a TFN that is restricted to Canadian callers only is dialed, and we drop that call off to one of our US TF Termination vendors, the call will be blocked, as the first PSTN vendor in the line does an SMS dip, sees this TFN is restricted to Canada dialers only, sees the call is entering the PSTN in the US, and rejects it whether the calling number has a Canada NPA or a US NPA."
I hope this helps you find a solution.
--Calvin, a voice services engineer
On Fri, Jan 23, 2015 at 8:38 AM, Ryan Delgrosso <ryandelgrosso at gmail.com> wrote:
We have trunks with a few canadian providers and route calls from canadian source numbers to TF calls exclusively over trunks to canadian providers. Usually that solves the issue.
On 1/22/2015 10:39 AM, Ujjval Karihaloo wrote:
Hi All:
We are being told by Level3 that if a Canadian DID calls a Canacdian TF number, they cannot guarantee call complete and its best effort. Anyone else run into something similar?
_______________________________________________ VoiceOps mailing listVoiceOps at voiceops.orghttps://puck.nether.net/mailman/listinfo/voiceops
_______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops
_______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops

Thx all for the valuable insights! *From:* VoiceOps [mailto:voiceops-bounces at voiceops.org] *On Behalf Of *Ivan Kovacevic *Sent:* Friday, January 23, 2015 1:04 PM *To:* Calvin E. *Cc:* VoiceOps *Subject:* Re: [VoiceOps] Canadian TF termination Calvin This is exactly how it works. ANI doesn't matter (although some IVRs also have application based ANI filters) We work with contact centres on both sides of the border, who often transfer to TFNs, and we had to hard code trunks for specific TFNs as there are also US based numbers that do not take traffic from Canadian trunks. It is a pain in the ... On 23 Jan 2015 14:33, "Calvin E." <calvine at gmail.com> wrote: I thought it worth sharing some feedback from a coworker who has been doing this a few decades longer than myself: "First, there's no such thing as a "Canadian" TFN. There are NANP TFNs that can, in theory, be dialed from anywhere in the NANP. Due to massive cost differences, NANP telcos allow TFN owners to restrict dialing to certain areas - 48 states, AK, HI, Canada, USVI/PR, Caribbean, or any combination thereof. "Second, it doesn't matter what the ANI of the calling number is. What matters is where the call is dropped into the PSTN. Thus, if a TFN that is restricted to Canadian callers only is dialed, and we drop that call off to one of our US TF Termination vendors, the call will be blocked, as the first PSTN vendor in the line does an SMS dip, sees this TFN is restricted to Canada dialers only, sees the call is entering the PSTN in the US, and rejects it whether the calling number has a Canada NPA or a US NPA." I hope this helps you find a solution. --Calvin, a voice services engineer On Fri, Jan 23, 2015 at 8:38 AM, Ryan Delgrosso <ryandelgrosso at gmail.com> wrote: We have trunks with a few canadian providers and route calls from canadian source numbers to TF calls exclusively over trunks to canadian providers. Usually that solves the issue. On 1/22/2015 10:39 AM, Ujjval Karihaloo wrote: Hi All: We are being told by Level3 that if a Canadian DID calls a Canacdian TF number, they cannot guarantee call complete and its best effort. Anyone else run into something similar? _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops
participants (5)
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calvine@gmail.com
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ivan.kovacevic@startelecom.ca
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Mark.Timm@netins.com
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ryandelgrosso@gmail.com
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ujjval@simplesignal.com