Preview Tool

Cisco Bug: CSCup01571 - Phone use RTPTx port not in port range

Last Modified

Jul 17, 2018

Products (29)

  • Cisco IP Phone 8800 Series
  • Cisco IP Phone 8851
  • Cisco Unified IP Phone 9951
  • Cisco Unified IP Phone 7962G
  • Cisco Unified IP Phone 7945G
  • Cisco IP Phone 7841
  • Cisco Unified IP Phone 6941
  • Cisco Unified IP Phone 7941G
  • Cisco IP Phone 7821
  • Cisco Unified IP Phone 6961
View all products in Bug Search Tool Login Required

Known Affected Releases


Description (partial)

Phone use 64412 as RTPTx port

1.Provision RTP port range 20480-20496 and apply to phone
2. Setup 8 calls on that phone. No more calls can be setup because no ports are available now
3.However, post the following message to phone, rtpTx stream still open on udp port 64412.
this port is not in port range, so it is weird to use this port send rtpTx stream

<mediaStream receiveVolume="50">
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.