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Cisco Bug: CSCvj06066 - Shareline call is one way audio if DUTs have different SIP&SDP prefer mode

Last Modified

Jun 06, 2018

Products (1)

  • Cisco IP Phone 8800 Series with Multiplatform Firmware

Known Affected Releases

11.1(2)

Description (partial)

Symptom:
Shareline call is one way audio if DUTs have different SIP&SDP prefer mode

Conditions:
1.DUTs are are in dual mode ,both have IPv4 and IPv6 address.
2. phone A(7861) SIP IP Preference:IPv6, SDP IP preference :IPv6,
3.Phone B (6851) and C(8861) SIP IP Preference:IPv4, SDP IP preference :IPv4
  B and C registered shared line 

Duplicate step:
1.A dial 2862---OK,B and C are ringing.
2.B answer call.--OK, audio between A and B is bidirectional.
3.A end call, repeat step1 ,C answer call.--KO, audio between A and C is one way.A has audio, C has no audio.
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