Hello,
Today we made a new cloud installation of 3CX with several SNOM D715 and 3 M215Sc DECT. The system works ok, but we have a problem with call transfer from D715 to M215Sc.
Call transfers between the D715 devices work ok. But when we try to transfer a call to any of the 3 DECT, we get an Error: Transfer failed. Both blind and attended transfer fail.
All devices have STUN enabled, and inside the Phones menu, we can see the public IP of the devices.
Here is the transfer log from verbose mode:
07/24/2019 12:52:52 PM - Call transfer requested on Leg L:31.2[Extn:307]; subscr. ID=Refer.SrvSubscr(21839919){[email protected]:65060}
Refer Recv Req REFER from xxx.70.68.96:50136 tid=-auj9hvpx84cw Call-ID=-rKD_uVv1h0KmiB7X2Wnfw..:
REFER sip:[email protected]:65060 SIP/2.0
Via: SIP/2.0/UDP xxx.70.68.96:50136;branch=z9hG4bK-auj9hvpx84cw;rport=50136
Max-Forwards: 70
Contact: <sip:[email protected]:50136;line=2etifeff>;reg-id=1
To: "302122228000" <sip:[email protected]:65060;nf=e>;tag=4ea89f08
From: "307"<sip:[email protected]:65060>;tag=95e8n8j5pl
Call-ID: -rKD_uVv1h0KmiB7X2Wnfw..
CSeq: 3 REFER
Proxy-Authorization: Digest
username="307",realm="3CXPhoneSystem",nonce="414d53595d382a7252:5d886f7bbc63fe38ac44c60238999da0",uri="sip:[email protected]:65060",response="e7bb983f7c7e80fb5c79a609ba359d8e",algorithm=MD5
User-Agent: snom715/10.1.37.11
Refer-To: sip:[email protected]:65060;user=phone
Referred-By: sip:[email protected]:65060
Content-Length: 0
(I have hidden the IPs and domain names)
There is no other log after that, we just get the error.
If we disable the STUN server inside the M215Sc, the transfer works. Also there is no firmware for this device in 3CX firmware page, we use official 2.10.46.adad.
Do you have any suggestion to why call transfer is not working when STUN is enabled?
Thank you.
Today we made a new cloud installation of 3CX with several SNOM D715 and 3 M215Sc DECT. The system works ok, but we have a problem with call transfer from D715 to M215Sc.
Call transfers between the D715 devices work ok. But when we try to transfer a call to any of the 3 DECT, we get an Error: Transfer failed. Both blind and attended transfer fail.
All devices have STUN enabled, and inside the Phones menu, we can see the public IP of the devices.
Here is the transfer log from verbose mode:
07/24/2019 12:52:52 PM - Call transfer requested on Leg L:31.2[Extn:307]; subscr. ID=Refer.SrvSubscr(21839919){[email protected]:65060}
Refer Recv Req REFER from xxx.70.68.96:50136 tid=-auj9hvpx84cw Call-ID=-rKD_uVv1h0KmiB7X2Wnfw..:
REFER sip:[email protected]:65060 SIP/2.0
Via: SIP/2.0/UDP xxx.70.68.96:50136;branch=z9hG4bK-auj9hvpx84cw;rport=50136
Max-Forwards: 70
Contact: <sip:[email protected]:50136;line=2etifeff>;reg-id=1
To: "302122228000" <sip:[email protected]:65060;nf=e>;tag=4ea89f08
From: "307"<sip:[email protected]:65060>;tag=95e8n8j5pl
Call-ID: -rKD_uVv1h0KmiB7X2Wnfw..
CSeq: 3 REFER
Proxy-Authorization: Digest
username="307",realm="3CXPhoneSystem",nonce="414d53595d382a7252:5d886f7bbc63fe38ac44c60238999da0",uri="sip:[email protected]:65060",response="e7bb983f7c7e80fb5c79a609ba359d8e",algorithm=MD5
User-Agent: snom715/10.1.37.11
Refer-To: sip:[email protected]:65060;user=phone
Referred-By: sip:[email protected]:65060
Content-Length: 0
(I have hidden the IPs and domain names)
There is no other log after that, we just get the error.
If we disable the STUN server inside the M215Sc, the transfer works. Also there is no firmware for this device in 3CX firmware page, we use official 2.10.46.adad.
Do you have any suggestion to why call transfer is not working when STUN is enabled?
Thank you.
