T46 Attended transfer recalls

[Phillipk]

Hi

We have two T46G and are unable to complete an attended transfer. The process we are using is as follows:
- Answer incoming call on extension 1
- press transfer key
- press DSS key for extension 2
- extension 2 answers to speak to extension 1
- announce to extension 2 who is on the call
- extension 1 replaces the handset

After the handset has been replaced on extension 1 the call immediately recalls on extension 1, whilst on extension 2 the line is silent and the call timer continues as if its still on a call.

A blind transfer works fine

Any suggestions would be greatly appreciated.

Thanks

[Karl_Yealink]

Please help us to get the pcap and syslog and config.bin files. We can check something from them.
You can get more info from the link: http://support.yealink.com/faq/faqInfo?id=311

[Phillipk]

Hi Karl

I have just emailed you the files

Thanks

[xkalib3r]

Hi

I know i'm bringing this post back from the dead... I am having the exact same issue with other model phones. Did you ever find a solution to this?

[Phillipk]

Hi
Sorry for the delayed response. Yes, this was resolved. The problem was our router configuration, to rectify the issue I disabled SIP ALG.

[necits2015]

This looks to be a Yealink bug. Please see the following post
https://community.asterisk.org/t/transfe...ents/69764