Source note · Setting up a Bandwidth SIP trunk
When a Bandwidth 911 SBC answers with SIP 410 the customer must resend the INVITE to the other 911 SBC, and must not fail over on a 487, which is the normal response to the customer's own CANCEL.
Checked 2026-09-30
If you receive a 487, don't fail over to the alternate SBC.
- Vendor
- Bandwidth
- Product
- E911 for Static VoIP
- Subsystem
- failover
- Deployment
- cloud
- Region
- north-america
- Release range
- current as of 2026-09-30
- Checked
- 2026-09-30
Sources
- E911 for Static VoIP integration & testing guide — Bandwidth · tier 2 current vendor documentation · Failover handling and response codes section
Cite this note
APA
WarmTransfer. (2026, September 30). Setting up a Bandwidth SIP trunk: source note bandwidth-sip-trunk-setup-e911-failover-410-487. WarmTransfer. https://warmtransfer.net/knowledge/claims/bandwidth-sip-trunk-setup-e911-failover-410-487
BibTeX
@misc{warmtransfer-claim-bandwidth-sip-trunk-setup-e911-failover-410-487,
title = {Setting up a Bandwidth SIP trunk: source note bandwidth-sip-trunk-setup-e911-failover-410-487},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/bandwidth-sip-trunk-setup-e911-failover-410-487},
note = {Source note bandwidth-sip-trunk-setup-e911-failover-410-487, checked 2026-09-30}
}