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So I've hit a wall here, we have one client out of a multi tenant domain unable to transfer calls within the last 24 hours. Caller a picks up call - goes to transfer to caller b presses hold or transfer when they hit transfer the call disconnects. Testing this in our office on their domain and...

Found the following, worth a bash? To disable SIP ALG on a Technicolor, Thomson, or SpeedTouch router you will need to Telnet into the router and unbind SIP from port 5060. If you have a Telnet Client installed, you simply need to run the following commands in the command prompt, which can be...

Reading the manual for that device I think I'd be finding a refurbished Yealink setting it up for the user and telling them to get used to it, we only use one Grandstream now and its a WIFI "dect" phone, no base stations no repeaters nice and simple.

Is this one extension a home worker? We've got satellite sites for clients all over, and from memory the only time I saw a single extension refusing to register was from a home router where we had to disable sip ALG from the command line using putty, as even after a restart it wouldn't disable...

Glad to know it wasn't just us then, we had that exact issue with the disconnect and Gamma told us we were requesting the termination, funnily enough the NHS numbers were managed by Gamma. We self resolved by switching the gateway to an internal profile until this 1 way audio reared it's head in...

Thanks for that Adrian, strangely all of our calls this morning began to be effected by the 1 way or no audio issue intermittently. We use Gamma Telecoms for the SBC and they swore they made no changes but after I escalated the ticket we noticed our Promax environment starting to lockup so we...

Supplier has provided the below showing the media traffic. I still cant think of a reason why out of over 5000 calls a day only these 3 numbers that we're aware of would have 1 way audio.

Sooo we have an issue when calling certain numbers where we can hear a recorded message initially then the line goes completely silent. (no ring tone etc). We have raised this already with our supplier who initially said they identified an issue and made some changes which actually made the...

You're going to need to provide more information, who are you sending the calls through? Is the outbound route correct?

I read that as them saying you aren't sending the right header.

Set it to pid caller ID should always display as what is set on the extension unless an outbound route overwrites it It all depends on what the provider is expecting.

They are saying you are sending them a rpid instead of pid or paid try the above, then stop and start the gateway and try the call again.

Go to your gateway and hit advanced, and fill in the sip CID type, we had an issue with Gamma telecom failing to supply the correct DDI to the emergency services until we entered the below.

Yes and if the handset being used has *87 set as another function on the phone ie cisco handset it could be causing the failure.

What handsets are you testing on? We use Yealinks for clients but our own handsets have their own feature codes (which we can edited on the phones webui) which can have unexpected interactions with Dialplan manager.

Could it be the registration expiring and re-registering?

Turns out it looked to be something to do with a dial 8 out prefix suddenly causing the calls to loop when ringing the extensions.

Howdy, It's been a while but we recently came across a right head scratcher and wondering if anyone has seen it before/any idea why it could be happening. We have a client who has a set up with 1 handset outside their main network with the other handsets inside their "head office" in reality...

We very recently (yesterday) found on a clients domain we had to actually set the ring group to simultaneous which seemed strange, but on enterprise and the client manually setting a call forward on a handset the ring group would ignore the call forward and despite the handset showing the call...

Is the codec enabled with your supplier and within the Advanced -> Default settings -> swissvoice_codec_order?