If Asterisk PRI debug output shows only outbound D-channel frames and nothing incoming, Sangoma says to contact the telco to confirm the D-channel has been activated.
Checked 2026-10-02
- Vendor
- Sangoma
- Product
- Asterisk
- Subsystem
- chan_dahdi PRI
- Deployment
- on-premises
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Telephony Cards - Asterisk Debugging — Sangoma Technologies · tier 2 current vendor documentation · PRI debugging section, diagnostic scenarios
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting PRI circuits that are down or dropping calls: source note pri-circuit-troubleshooting-asterisk-outbound-only. WarmTransfer. https://warmtransfer.net/knowledge/claims/pri-circuit-troubleshooting-asterisk-outbound-only
BibTeX
@misc{warmtransfer-claim-pri-circuit-troubleshooting-asterisk-outbound-only,
title = {Troubleshooting PRI circuits that are down or dropping calls: source note pri-circuit-troubleshooting-asterisk-outbound-only},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/pri-circuit-troubleshooting-asterisk-outbound-only},
note = {Source note pri-circuit-troubleshooting-asterisk-outbound-only, checked 2026-10-02}
}