Can my calls be routed trough a eu POP?

Pre-Sales
1

When I’m receiving a call in my Asterisk SIP, the IP is from USA with a huge delay, 1-2s(looped back the input-ouput, on my SIP is 150ms in reality is horror)…as I live in EU, and my SIP server is in Germany I would very much apriciate if it would be possible to have my calls routed inside EU in order to comply with GDPR.

2

Hi @unusec,

Our current SIP forwarding uses a US-based relay, so a German SIP destination doesn’t make the whole route EU-only. The panel doesn’t offer an EU routing selector.

I’ve emailed you for a recent call example and whether the delay is before ringing or while speaking, so we can investigate it. Please keep call details and any network captures in that private thread.

3

Thanks, sent you on that thread the info/recordings, to sum it up you have 2 recordings:

- one from the server that sends the input to the output so you can hear a ~150ms delay between them

- one of a real call I start speaking at 2.64s and get back my input at 3.9s.

The sip server hosted in Germany is running over TLS, codecs: opus,ulaw,alaw,g722, media_encryption = sdes with optimistic = yes, external_media_address + bind_rtp_to_media_address set.

4

Hi @unusec,

Thanks for the recordings. We checked your test calls. On our side the audio passes straight through: same codec on both legs (G.711 u-law), no transcoding, no jitter buffer, no packet loss. The US relay does add distance. From it we measure about 87 ms round trip to the European gateway your calls arrive on and about 92 ms to your server, and your echo test crosses each twice, so the relay accounts for roughly 180 ms of the 1.3 s. An EU route would recover about 160 ms of that.

That leaves around 1 s coming from elsewhere on the path. Two tests would narrow it down:

  1. Call the number from a landline or a VoIP line instead of a mobile. Mobile networks often add 150–250 ms each way.
  2. Check whether a jitter buffer is enabled for that endpoint on your Asterisk.

EU delivery for SIP forwarding isn’t available today. We’ve looked into what it would take and it’s on our list, but without a date.