Preview Tool

Cisco Bug: CSCvt35877 - Enh: Phone is not adding +sip.instance in SIP messages (Contact header)

Last Modified

Mar 14, 2020

Products (1)

  • Cisco IP Phone 7800 Series with Multiplatform Firmware

Known Affected Releases


Description (partial)

They need 2 (or more) phones on the same account, the pbx provider needs the sip.instance to identify and track multiple registrations (sip forking).

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.