SBC upgrades and resilience

Oracle Acme Packet upgrade

Upgraded both Oracle SBC pairs to SCZ910p1 between May and September 2022 (48 hours).

1. Built and staged the lab (20 hours).
2. Ran 9 UAT test plans, covering SIP trunking and mobile clients.
3. Upgraded both production pairs.

I also commissioned a replacement SBC unit, brought it to the right firmware and proved it with double failovers.

Ribbon QTX stability

• 127 hours on the QTX pairs, including 26 planned failovers and a vendor defect case.
• Moved a carrier interconnect between public and private realms through planned double failovers (2023).
• Restored call-record delivery to the fraud system with a planned failover.
• Upgraded a Genband QTX cluster and its route manager to 9.4.6, and decommissioned the legacy Oracle 4500 SBCs.

Route and statistics manager

77 hours on the Ribbon route and statistics manager: fixed monitoring and audit logging, took database backups and made policy-routing changes.

Wholesale SBC refresh

Trained on the Ribbon SBC 5400 (57 hours), staged the production unit, tested the first trunks on it and ran an enterprise SIP trunk proof of concept (22 hours).

I also moved SIP-PRI EdgeMarc devices to cloud EdgeView management, upgraded the EdgeView server (38 hours) and wrote Verso C5 failover runbooks.

Outage recovery and fault finding

• Restored wholesale DID routing for 21 wholesale accounts within a week of a QTX outage, mostly after hours and on weekends.
• Traced intermittent no-audio calls on wholesale traffic to a single media gateway board (30 hours).
• Replaced failed gateway cards after a regional outage and wrote the vendor log-collection process into the wiki.

Connecting the two networks

Supported the SIP trunk interconnect between the Comwave and Rogers networks with SBC failovers and private peering VLANs (2024).

Stack