I am looking for a secure, affordable, reliable sip trunking service for 3CX for our small office. Preferably one where I can get static phone numbers that will never change.
Yes, definitely.
Which country you are located in ?
Select between supported SIP trunk providers or take a look at: http://www.voip-list.com/voip_countries/ -- most of them should work with 3CX.
Never, is a long time. Keep in mind that any number that is assigned by a provider, may be lost if that company ever goes out of business. In many cases, a number will be brought with, and ported to a provider. You may have fewer issues taking that (type of) number with you if you choose to move to another provider, for what ever reason.
If long term retention of a number is critical, then ask (and perhaps get a response in writing) "what will happen to my number if...?"
I will definitely recommend broadvoice / phone power. They have the best cost benefit and the quality is excellent. I have been using them for more then 10 years now.
I'm almost 4 weeks new to 3CX and seem to be having trouble with inbound calls on broadvoice/phone power.
Would someone be kind enough to show me the sip configuration?
From what I can tell, the inbound calls never hit my server.
The image below shows my basic config for the trunk.
Outbound calls work, just not inbound.
I appreciate your response cobaltit.
I've checked and double-checked the firewall. Passed each time.
Even went so far as to order a trunk from Vitelity, which is working great for outbound
and inbound calls.