{"id":"INC-twilio-k837lh2xzwh0","kind":"incident","aliases":[],"related":[],"title":"Twilio: Voice Call Audio Quality Degradation from a Subset of Twilio Mobile Numbers to Claro Colombia","description":"Twilio customers may be experiencing voice call audio quality degradation from a subset of Twilio Mobile Numbers to Claro network subscribers in Colombia. Our team is actively investigating this 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":"resolved","published_at":"2026-11-06T15:12:49+00:00","first_seen_at":"2026-11-06T15:15:20+00:00","triaged_at":"2026-11-06T15:16:41+00:00","updated_at":"2026-11-06T15:50:54+00:00","category":"vendor","confidence":null,"triage":null,"analyst_status":null,"analyst_note":null,"search":"'1':63C 'activ':53C 'anoth':60C 'audio':4A,34C 'avail':72C 'becom':71C 'call':3A,33C 'claro':15A,45C 'colombia':16A,49C 'custom':28C 'degrad':6A,36C 'experienc':31C 'hour':64C 'inc':18A 'inc-twilio-k837lh2xzwh0':17A 'incid':22B 'inform':70C 'investig':54C 'issu':56C 'k837lh2xzwh0':20A 'may':29C 'mobil':12A,42C 'network':46C 'number':13A,43C 'op':23B 'provid':59C 'qualiti':5A,35C 'sms':24B 'soon':67C 'subscrib':47C 'subset':9A,39C 'team':51C 'twilio':1A,11A,19A,21A,25B,27C,41C 'updat':61C 'vendor':26B 'voic':2A,32C","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':4A 'call':3A 'claro':15A 'colombia':16A 'degrad':6A 'inc':18A 'inc-twilio-k837lh2xzwh0':17A 'k837lh2xzwh0':20A 'mobil':12A 'number':13A 'qualiti':5A 'subset':9A 'twilio':1A,11A,19A,21A 'voic':2A","search_b":"'incid':22B 'op':23B 'sms':24B 'twilio':25B 'vendor':26B","search_c":"'1':63C 'activ':53C 'anoth':60C 'audio':34C 'avail':72C 'becom':71C 'call':33C 'claro':45C 'colombia':49C 'custom':28C 'degrad':36C 'experienc':31C 'hour':64C 'inform':70C 'investig':54C 'issu':56C 'may':29C 'mobil':42C 'network':46C 'number':43C 'provid':59C 'qualiti':35C 'soon':67C 'subscrib':47C 'subset':39C 'team':51C 'twilio':27C,41C 'updat':61C 'voic':32C","first_public_at":"2026-11-06T15:12:49+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"statuspage","external_id":"twilio:k837lh2xzwh0","url":"https://stspg.io/js4403xnsb4l","severity":"medium","published_at":"2026-11-06T15:12:49+00:00","modified_at":"2026-11-06T15:49:17+00:00","first_seen_at":"2026-11-06T15:15:20+00:00","fetched_at":"2026-11-06T16:16:56+00:00","note":null}],"documents":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}