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Cisco Bug: CSCsz34181 - PSTN cannot hear MoH when IRB is enabled

Last Modified

Feb 15, 2017

Products (32)

  • Cisco 2800 Series Integrated Services Routers
  • Cisco AS5400XM Universal Gateway
  • Cisco 881SRSTW Integrated Services Router
  • Cisco 888W Integrated Services Router
  • Cisco 881SRST Integrated Services Router
  • Cisco Unified Communications 520 for Small Business (UC520)
  • Cisco AS5350XM Universal Gateway
  • Cisco 881W Integrated Services Router
  • Cisco IAD888W Integrated Access Device
  • Cisco 3250 Rugged Integrated Services Router
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Known Affected Releases


Description (partial)


when IRB is enabled, MoH cannot be heard on PSTN side when ip phone place PSTN call on hold


IRB is enabled.
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