If you blind transfer using another carrier (not Verizon) does it work? What does Verizon support say? I would agree with Izzy, your header on a blind transfer is probably showing the callers ID and thus Verizon is dropping the call. Aryn H. K. Nakaoka anakaoka at trinet-hi.com Direct: 808.356.2901 Fax: 808.356.2919 Tri-net Solutions 518 Holokahana Lane Suite #200 Honolulu, HI 96817 http://www.trinet-hi.com https://twitter.com/AlohaTone Aloha Tone PBX https://www.youtube.com/watch?v=96YWPY9wCeU Aloha Tone (HA) High Availability http://youtu.be/rJsr4k0RBH8 A Better Solution https://www.trinet-hi.com/abettersolution.pdf <https://www.trinet-hi.com/abettersolution.pdf> CONFIDENTIALITY NOTICE: The information contained in this email and any attachments may be privileged, confidential and protected from disclosure. Any disclosure, distribution or copying of this email or any attachments by persons or entities other than the intended recipient is prohibited. If you have received this email in error, please notify the sender immediately by replying to the message and deleting this email and any attachments from your system. Thank you for your cooperation. On Mon, Jun 5, 2017 at 6:05 AM, Izzy Goldstein - TeleGo < igoldstein at telego.net> wrote:

i dont think its a "verizon iphone" issue, i cant see how you doing a blind vs a "warm" transfer

compare your two invites to the upstream carrier, maybe when you do a blind transfer it has some bad headers or information in some parameters etc

On Mon, Jun 5, 2017 at 11:35 AM, David Wessell <david at ringfree.com> wrote:

...

Hi All,

We're seeing an issue since 6/1/17 where blind transfers from an external number to iPhones on Verizon Wireless don't ring the iPhone. Has anyone else seen this?

Scenario: External caller dials in. Blind transfer is done to the Verizon iPhone. The iPhone never rings. External caller dials in. Warm transfer is done to the Verizon iPhone. The iPhone rings. Internal caller dials the Verizon iPhone and the iPhone rings.

We've never seen this issue until 6/1/17. Has anyone else had complaints?

Thanks David

-- David Wessell *Co-Owner*, Ringfree Communications, Inc. [image: Ringfree Communications Logo] <http://www.ringfree.com/> Phone: (828) 575-0030 x101 <82825750030> Email: david at ringfree.com Website: www.ringfree.com 824 Locust St. Suite 200 Hendersonville, NC 28792 [image: Twitter] <https://www.twitter.com/RingfreeCom> [image: Facebook] <http://www.facebook.com/Ringfree> [image: LinkedIn] <http://www.linkedin.com/company/ringfree-communications-llc> How was your experience? Tell us by taking our Customer Service Survey <https://www.supersimplesurvey.com/Survey/16842/signature/>. *Confidentiality Note: * This e-mail and any attachments are confidential and may be protected by legal privilege. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of this e-mail or any attachment is prohibited. If you have received this e-mail in error, please notify us immediately by returning it to the sender and delete this copy from your system. Thank you for your cooperation.

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We are running asterisk 1.8.x behind a Sansay SBC. We have tested iphones on other carriers and they work fine. We have tested other Android phones on Verizon. They work fine. The only failures are iPhones on Verizons network. We've tested termination both through Level3 and Bandwidth and have had the same duplicatable results. What we found was causing the issue was the insertion of Alert Info: into the SIP header. Asterisk lets us do this to define ring tones. If we remove that it goes away. What's odd is that this never caused an issue until this past Thursday. Thanks David On Mon, Jun 5, 2017 at 3:10 PM, Carlos Alvarez <caalvarez at gmail.com> wrote:

I haven't had any complaints like this, and I know we have quite a few Verizon users. You implied something I want to ask specifically...

Have you actually tested blind transfers to iPhones on other carriers?

Have you actually tested blind transfers to other phones on Verizon?

Who is your upstream? Many of them are doing private interconnects with the cell carriers now and when that happens signaling may change or be handled differently. The substitution of the CLID and/or the call leg may be the culprit here.

On Mon, Jun 5, 2017 at 8:35 AM, David Wessell <david at ringfree.com> wrote:

...

Hi All,

We're seeing an issue since 6/1/17 where blind transfers from an external number to iPhones on Verizon Wireless don't ring the iPhone. Has anyone else seen this?

Scenario: External caller dials in. Blind transfer is done to the Verizon iPhone. The iPhone never rings. External caller dials in. Warm transfer is done to the Verizon iPhone. The iPhone rings. Internal caller dials the Verizon iPhone and the iPhone rings.

We've never seen this issue until 6/1/17. Has anyone else had complaints?

Thanks David

-- David Wessell *Co-Owner*, Ringfree Communications, Inc. [image: Ringfree Communications Logo] <http://www.ringfree.com/> Phone: (828) 575-0030 x101 <82825750030> Email: david at ringfree.com Website: www.ringfree.com 824 Locust St. Suite 200 Hendersonville, NC 28792 [image: Twitter] <https://www.twitter.com/RingfreeCom> [image: Facebook] <http://www.facebook.com/Ringfree> [image: LinkedIn] <http://www.linkedin.com/company/ringfree-communications-llc> How was your experience? Tell us by taking our Customer Service Survey <https://www.supersimplesurvey.com/Survey/16842/signature/>. *Confidentiality Note: * This e-mail and any attachments are confidential and may be protected by legal privilege. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of this e-mail or any attachment is prohibited. If you have received this e-mail in error, please notify us immediately by returning it to the sender and delete this copy from your system. Thank you for your cooperation.

_______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops

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-- David Wessell *Co-Owner*, Ringfree Communications, Inc. [image: Ringfree Communications Logo] <http://www.ringfree.com/> Phone: (828) 575-0030 x101 <82825750030> Email: david at ringfree.com Website: www.ringfree.com 824 Locust St. Suite 200 Hendersonville, NC 28792 [image: Twitter] <https://www.twitter.com/RingfreeCom> [image: Facebook] <http://www.facebook.com/Ringfree> [image: LinkedIn] <http://www.linkedin.com/company/ringfree-communications-llc> How was your experience? Tell us by taking our Customer Service Survey <https://www.supersimplesurvey.com/Survey/16842/signature/>. *Confidentiality Note: * This e-mail and any attachments are confidential and may be protected by legal privilege. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of this e-mail or any attachment is prohibited. If you have received this e-mail in error, please notify us immediately by returning it to the sender and delete this copy from your system. Thank you for your cooperation.

VoLTE disabled and calls still fail. I have tickets open with Bandwidth and Level3, hoping they can provide some insight. THanks David On Mon, Jun 5, 2017 at 4:32 PM, Sean Hayes <sean at engage.pro> wrote:

I wonder if this issue is related to VoLTE deployment in your area. Does the problem continue if VoLTE is disabled on the iPhone?

Sean

-- David Wessell *Co-Owner*, Ringfree Communications, Inc. [image: Ringfree Communications Logo] <http://www.ringfree.com/> Phone: (828) 575-0030 x101 <82825750030> Email: david at ringfree.com Website: www.ringfree.com 824 Locust St. Suite 200 Hendersonville, NC 28792 [image: Twitter] <https://www.twitter.com/RingfreeCom> [image: Facebook] <http://www.facebook.com/Ringfree> [image: LinkedIn] <http://www.linkedin.com/company/ringfree-communications-llc> How was your experience? Tell us by taking our Customer Service Survey <https://www.supersimplesurvey.com/Survey/16842/signature/>. *Confidentiality Note: * This e-mail and any attachments are confidential and may be protected by legal privilege. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of this e-mail or any attachment is prohibited. If you have received this e-mail in error, please notify us immediately by returning it to the sender and delete this copy from your system. Thank you for your cooperation.

David, I had the same issues last week, running asterisk, had a cell phone as an alternate destination for a ring group, passing alert info, call would not complete, and Level3 would return invalid SIP value sent (or something of the sort), and I noticed we were sending the Alert info. We ended up taking the alert info off the ring group and it worked. I think long term plan, we'll strip the alert-info off on our SBC. Michael From: "David Wessell" <david at ringfree.com> To: "Carlos Alvarez" <caalvarez at gmail.com> Cc: "VoiceOps (voiceops at voiceops.org)" <voiceops at voiceops.org> Sent: Monday, June 5, 2017 3:25:15 PM Subject: Re: [VoiceOps] Blind Transfer Issue to iPhones on Verizon We are running asterisk 1.8.x behind a Sansay SBC. We have tested iphones on other carriers and they work fine. We have tested other Android phones on Verizon. They work fine. The only failures are iPhones on Verizons network. We've tested termination both through Level3 and Bandwidth and have had the same duplicatable results. What we found was causing the issue was the insertion of Alert Info: into the SIP header. Asterisk lets us do this to define ring tones. If we remove that it goes away. What's odd is that this never caused an issue until this past Thursday. Thanks David On Mon, Jun 5, 2017 at 3:10 PM, Carlos Alvarez < caalvarez at gmail.com > wrote: I haven't had any complaints like this, and I know we have quite a few Verizon users. You implied something I want to ask specifically... Have you actually tested blind transfers to iPhones on other carriers? Have you actually tested blind transfers to other phones on Verizon? Who is your upstream? Many of them are doing private interconnects with the cell carriers now and when that happens signaling may change or be handled differently. The substitution of the CLID and/or the call leg may be the culprit here. On Mon, Jun 5, 2017 at 8:35 AM, David Wessell < david at ringfree.com > wrote: BQ_BEGIN Hi All, We're seeing an issue since 6/1/17 where blind transfers from an external number to iPhones on Verizon Wireless don't ring the iPhone. Has anyone else seen this? Scenario: External caller dials in. Blind transfer is done to the Verizon iPhone. The iPhone never rings. External caller dials in. Warm transfer is done to the Verizon iPhone. The iPhone rings. Internal caller dials the Verizon iPhone and the iPhone rings. We've never seen this issue until 6/1/17. Has anyone else had complaints? Thanks David -- David Wessell Co-Owner , Ringfree Communications, Inc. Phone: (828) 575-0030 x101 Email: david at ringfree.com Website: www.ringfree.com 824 Locust St. Suite 200 Hendersonville, NC 28792 How was your experience? Tell us by taking our Customer Service Survey . Confidentiality Note: This e-mail and any attachments are confidential and may be protected by legal privilege. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of this e-mail or any attachment is prohibited. If you have received this e-mail in error, please notify us immediately by returning it to the sender and delete this copy from your system. Thank you for your cooperation. _______________________________________________ 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 BQ_END -- David Wessell Co-Owner , Ringfree Communications, Inc. Phone: (828) 575-0030 x101 Email: david at ringfree.com Website: www.ringfree.com 824 Locust St. Suite 200 Hendersonville, NC 28792 How was your experience? Tell us by taking our Customer Service Survey . Confidentiality Note: This e-mail and any attachments are confidential and may be protected by legal privilege. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of this e-mail or any attachment is prohibited. If you have received this e-mail in error, please notify us immediately by returning it to the sender and delete this copy from your system. Thank you for your cooperation. _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops