On Apr 28, 2007, at 8:17 PM, Thomas Kenyon wrote: > Daniel Melnechuk wrote: >> Dear CallWeaver Users, >> >> I am new to all this and am learning as fast as i can as i get my >> CallWeaver running at least with softphones on my LAN for the moment. >> To move to the next step, i need to connect to the 'net. >> >> So I am looking for SIP ITSP recommendations, ratings, links to >> ratings, and/or who you use with CallWeaver (or openpbx or whatever). >> My biggest issue is bringing over some land line numbers that i can't >> lose. If you have had any experience with keeping some phone numbers >> and moving them with you from ITSP to ITSP i would love to hear that. >> I might also have an 800 number to move and will also move over my >> fax line so will need T38 support eventually. There is also the issue >> of E911 service. >> > Okay, this may be out of the scope of this mailing list, but for > recommendations we'd need quite a lot more information. > > ie. useage patterns, service level required etc. (I'm assuming the > country of origin is the US, which is also an important factor).
Thomas, I did ask the list admin before posting. Paraphrasing, he said this is a community and if the community thinks this is unacceptable, they will let you know. Of course, out right advertisements from service providers would appear to be out of the scope of the list. So i am perfectly willing to let this drop if people think this is off topic, but i have already learned more to think about thanks to your response: usage patterns and service level required. I am in US. As a systems engineer i do understand that i want to be near my ITSP so as to not incur any extra ms on the round trip for the packets, and that my ITSP is hooked up well to PSTN. I would guess that usage patterns mean what combination of local/ state/country/international calls and whether business or residential. Curious that some DID services only cover US48 states -- no Hawaii and Alaska! Or am i misunderstanding?. As for service level, from quick research i find the following should be looked into: 1. QoS (resource reservation or resource prioritization) 2. latency (ITU recommends never exceed 150 total trip from speaker to listener) 3. jitter (timing variations in packet delivery) 4. packet loss (1% loss translates into a voice clip or skip every 3 minutes, 0.25% one every 53 minutes) 5. presence of dial tone 6. time to connection 7. caller ID 8. service outage ratings 9. mean time to repair 10. mean time to respond 11. porting ability! (thanks to [EMAIL PROTECTED] -- no name provided) Also, thanks to [EMAIL PROTECTED], i now get the picture that is is common to have different providers for SIP termination and for DID service. Is there more to usage patterns and service level that you or anyone else like to add? As for my needs, i do need incoming to allow from anywhere in US and Canada. What about the world? I actually do need that. Is that hard to find? As for outgoing, i mostly need local, US and Canada, and to a much lesser need the whole world. I am in US. Look forward to more provider ratings and considerations when choosing ITSPs. Peace, Dan _______________________________________________ Callweaver-users mailing list [email protected] http://lists.callweaver.org/mailman/listinfo/callweaver-users
