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Cisco Bug: CSCuw34107 - ATA 190 does not respond after T.38 swithover

Last Modified

Aug 02, 2018

Products (1)

  • Cisco IP Phone 7800 Series

Known Affected Releases

1.2(1.5)

Description (partial) 

Symptom:
After T,38 switchover occurs for either inbound or outbound faxing via SIP trunk, ATA 190 does not respond with any T.30 messages.

Conditions:
Only fails via ATA190; works fine with ATA187 where far-end initiates switchover first

Related Community Discussions

ATA-190 で T.38 FAX リレー通信が失敗する
2016年4月22日（初版） TAC SR Collection 主な問題 Cisco ATA 190 Analog Telephone Adaptor (ATA-190) での T.38 FAX リレー通信が失敗します。 原因 <key>CSCuw34107</key> に該当する可能性があります。 解決策 T.38 FAX リレーの代わりに FAX パススルー方式を使用してください。 Cisco Unified CM の デバイスの設定で、Fax Mode を T.38 Fax Relay からFax Pass-through または NSE Fax Pass-through g711ulaw に変更できます。  
Latest activity: Apr 22, 2016
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