{"uid":"cap_XBsoufy5Rj8Y-i7TIvzRi","slug":"h323cs-tcp-srv-record-lookup-via-cloudflare-doh-dc1d4fbb","name":"H323CS TCP SRV Record Lookup via Cloudflare DoH","description":"H323CS service discovery (_h323cs._tcp.<domain>): SRV records with priority, weight, port and target host, from Cloudflare DoH. Tells a client where the domain's h323cs service lives without guessing hosts. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/srv/h323cs-tcp?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_3ZJczrLF-v7u4fu2dqgmc","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns SRV records for the H.323 Call Signaling (_h323cs._tcp) service of a given domain via Cloudflare DNS over HTTPS.","exampleAgentPrompt":"Can you look up the H.323 call signaling SRV record for example.com so I can find out what host and port its h323cs TCP service is running on?","exampleUseCases":[{"title":"VoIP infrastructure discovery for a domain","prompt":"I need to find the H.323 call signaling server for voipcompany.com — can you look up its _h323cs._tcp SRV record and tell me the target host, port, priority and weight?"},{"title":"Verifying H.323 DNS configuration","prompt":"We just set up H.323 call signaling for our company domain corp.example.com — can you check the _h323cs._tcp SRV record to confirm it's pointing to the right server with the correct port?"},{"title":"Troubleshooting H.323 connection failures","prompt":"Our H.323 calls to partner.org keep failing — can you pull the SRV record for _h323cs._tcp on partner.org so I can see where it's supposed to connect?"}],"resultDescription":"Returns DNS SRV record data for _h323cs._tcp.<domain> including one or more records each with priority, weight, port number, and target hostname, along with the TTL and DNS response code, as resolved by Cloudflare's DNS over HTTPS service.","failureModes":["Domain has no _h323cs._tcp SRV record configured (NXDOMAIN or empty answer)","Domain does not exist (NXDOMAIN)","Cloudflare DoH upstream timeout or unavailability","Malformed or missing domain input parameter","DNS SERVFAIL due to broken zone configuration"],"whenToPreferThis":"Use this endpoint when you need to discover an H.323 Call Signaling service endpoint for a specific domain via DNS SRV lookup, particularly when you want results from Cloudflare's 1.1.1.1 resolver with privacy-preserving DNS over HTTPS. Prefer this over manual DNS tools when automating VoIP infrastructure discovery or verifying H.323 configuration in an agent workflow.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-18T06:58:07.336Z","isFirstParty":false,"canonicalSlug":"h323cs-tcp-srv-record-lookup-via-cloudflare-doh-dc1d4fbb"}