{"id":"INC-twilio-jlw5t054g7jt","kind":"incident","aliases":[],"related":[],"title":"Twilio: Voice Call Silent and One-Way Audio Between a Subset of Twilio Phone Numbers and Multiple Networks in the United Kingdom of Great Britain and Northern Ireland","description":"Twilio customers may be experiencing voice call audio quality degradation and silent and one-way audio between a subset of Twilio Phone Numbers and network subscribers on multiple networks in the United Kingdom of Great Britain and Northern Ireland. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.","summary":null,"severity":"medium","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Twilio","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["incident","ops","sms","twilio","vendor"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-09T16:34:05+00:00","first_seen_at":"2026-11-09T16:37:23+00:00","triaged_at":"2026-11-09T16:38:59+00:00","updated_at":"2026-11-09T16:47:35+00:00","category":"vendor","confidence":null,"triage":null,"analyst_status":null,"analyst_note":null,"search":"'1':99C 'anoth':96C 'audio':9A,47C,56C 'avail':108C 'becom':107C 'britain':26A,76C 'call':3A,46C 'caus':85C 'custom':41C 'degrad':49C 'experienc':44C 'great':25A,75C 'hour':100C 'identifi':83C 'inc':31A 'inc-twilio-jlw5t054g7jt':30A 'incid':35B 'inform':106C 'ireland':29A,79C 'issu':92C 'jlw5t054g7jt':33A 'kingdom':23A,73C 'may':42C 'multipl':18A,68C 'network':19A,65C,69C 'northern':28A,78C 'number':16A,63C 'one':7A,54C 'one-way':6A,53C 'op':36B 'phone':15A,62C 'provid':95C 'qualiti':48C 'resolv':90C 'silent':4A,51C 'sms':37B 'soon':103C 'subscrib':66C 'subset':12A,59C 'team':81C 'twilio':1A,14A,32A,34A,38B,40C,61C 'unit':22A,72C 'updat':97C 'vendor':39B 'voic':2A,45C 'way':8A,55C 'work':88C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":null,"audience":null,"plain_action":null,"pkeys":["twilio"],"ptokens":["twilio"],"labels":["incident","medium","ops","sms","twilio","vendor"],"campaign_type":null,"search_a":"'audio':9A 'britain':26A 'call':3A 'great':25A 'inc':31A 'inc-twilio-jlw5t054g7jt':30A 'ireland':29A 'jlw5t054g7jt':33A 'kingdom':23A 'multipl':18A 'network':19A 'northern':28A 'number':16A 'one':7A 'one-way':6A 'phone':15A 'silent':4A 'subset':12A 'twilio':1A,14A,32A,34A 'unit':22A 'voic':2A 'way':8A","search_b":"'incid':35B 'op':36B 'sms':37B 'twilio':38B 'vendor':39B","search_c":"'1':99C 'anoth':96C 'audio':47C,56C 'avail':108C 'becom':107C 'britain':76C 'call':46C 'caus':85C 'custom':41C 'degrad':49C 'experienc':44C 'great':75C 'hour':100C 'identifi':83C 'inform':106C 'ireland':79C 'issu':92C 'kingdom':73C 'may':42C 'multipl':68C 'network':65C,69C 'northern':78C 'number':63C 'one':54C 'one-way':53C 'phone':62C 'provid':95C 'qualiti':48C 'resolv':90C 'silent':51C 'soon':103C 'subscrib':66C 'subset':59C 'team':81C 'twilio':40C,61C 'unit':72C 'updat':97C 'voic':45C 'way':55C 'work':88C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-09T16:34:05+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"statuspage","external_id":"twilio:jlw5t054g7jt","url":"https://stspg.io/2rrsyptxpyqb","severity":"medium","published_at":"2026-11-09T16:34:05+00:00","modified_at":"2026-11-09T16:49:11+00:00","first_seen_at":"2026-11-09T16:37:23+00:00","fetched_at":"2026-11-09T16:51:42+00:00","note":null}],"documents":[],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}