Calling client freeze when called client discarded the incoming call initiated by calling client

[fonger900]

this is the log output when the problem occurred:

D/tgvoip: Packet with seq 108 was not acknowledged
V/tgvoip: Writing extra into header: type 1, length 5
V/tgvoip: jitter: found no packet for timestamp 7258 (last put = 0, lost = 0)
V/tgvoip: jitter: found no packet for timestamp 7318 (last put = 0, lost = 0)
V/tgvoip: Writing extra into header: type 1, length 5
D/tgvoip: Packet with seq 109 was not acknowledged
D/tgvoip: Packet with seq 110 was not acknowledged
V/tgvoip: jitter: found no packet for timestamp 7318 (last put = 0, lost = 0)
V/tgvoip: jitter: found no packet for timestamp 7378 (last put = 0, lost = 0)
V/tgvoip: Writing extra into header: type 1, length 5
D/tgvoip: Packet with seq 111 was not acknowledged
V/tgvoip: jitter: found no packet for timestamp 7378 (last put = 0, lost = 0)
V/tgvoip: jitter: found no packet for timestamp 7438 (last put = 0, lost = 0)
V/tgvoip: Writing extra into header: type 1, length 5
V/tgvoip: jitter: found no packet for timestamp 7438 (last put = 0, lost = 0)
V/tgvoip: jitter: found no packet for timestamp 7498 (last put = 0, lost = 0)
V/tgvoip: Writing extra into header: type 1, length 5
D/tgvoip: Packet with seq 112 was not acknowledged

[fonger900]

this happen in 2.4.4 version