Re: [nznog] Email to SMS gateway
Actually, SMS does offer "guaranteed" delivery. It doesn't matter if the phone is off, an error occurs in communication, a data circuit goes down ... However there are limits. If the message cannot be delivered (such as end device failure) then you can request a receipt to get notification of this. I don't recall ever noticing a lag of hours for SMS delivery (I don't ever recall a TXT taking more than 60s to be delivered) but I guess different TXT processing systems use different methods for getting the TXT into the network for delivery. -----Original Message----- From: Jasper Bryant-Greene [mailto:j(a)digiweb.net.nz] Sent: Tuesday, 17 April 2007 11:15 a.m. To: Philip D'Ath Cc: Samuel Collinson; Dan Clark; NZ Network Operators Group Subject: Re: [nznog] Email to SMS gateway On this - we have found SMS to be a bit unreliable lately, with messages being delivered hours late or not at all. I am aware that SMS does not provide "guaranteed delivery" - what methods are others on this list using to send alerts reliably? Cheers Jasper
We had a situation the week before last where our monitoring system sent out SMS alerts to the on-call engineer and engineers at 2am yet no one received it until 8am. For critical monitoring I wouldn't suggest it. AJ -----Original Message----- From: Philip D'Ath [mailto:pid(a)ifm.net.nz] Sent: Tuesday, 17 April 2007 11:25 a.m. To: Jasper Bryant-Greene Cc: NZ Network Operators Group Subject: Re: [nznog] Email to SMS gateway Actually, SMS does offer "guaranteed" delivery. It doesn't matter if the phone is off, an error occurs in communication, a data circuit goes down ... However there are limits. If the message cannot be delivered (such as end device failure) then you can request a receipt to get notification of this. I don't recall ever noticing a lag of hours for SMS delivery (I don't ever recall a TXT taking more than 60s to be delivered) but I guess different TXT processing systems use different methods for getting the TXT into the network for delivery. -----Original Message----- From: Jasper Bryant-Greene [mailto:j(a)digiweb.net.nz] Sent: Tuesday, 17 April 2007 11:15 a.m. To: Philip D'Ath Cc: Samuel Collinson; Dan Clark; NZ Network Operators Group Subject: Re: [nznog] Email to SMS gateway On this - we have found SMS to be a bit unreliable lately, with messages being delivered hours late or not at all. I am aware that SMS does not provide "guaranteed delivery" - what methods are others on this list using to send alerts reliably? Cheers Jasper _______________________________________________ NZNOG mailing list NZNOG(a)list.waikato.ac.nz http://list.waikato.ac.nz/mailman/listinfo/nznog
Both vodafone and telecom often have delays under peak traffic times. Most
notably around holiday periods (new years eve etc.) but has often occured at
other times as well.
Theres also politics involved around sending SMS's off-net to other
carriers, i.e. Telecom might not allow you to send to vodafone australia.
The recent introduction of number portability also introduces delivery
issues (the carriers themselves don't send to ported numbers, the sender has
to send to the correct carrier). To this end, there is a webservice
(monthly subscription fee to access) that gives you a csv list (full list,
and daily list) of ported numbers.
On 4/17/07, Philip D'Ath
I don't recall ever noticing a lag of hours for SMS delivery (I don't ever recall a TXT taking more than 60s to be delivered) but I guess different TXT processing systems use different methods for getting the TXT into the network for delivery.
Mark Derricutt wrote:
Both vodafone and telecom often have delays under peak traffic times. Most notably around holiday periods (new years eve etc.) but has often occured at other times as well.
I can definitely concur with that. I've had SMS' take 4 days to be delivered in the past, and have regularly had messages silently discarded, or transmission fail. Also, if you're in a peak SMS area (e.g. Auckland Domain during the Groupe F fireworks), good luck receiving the SMS due to channel congestion. VF's SMS woes (and in particular with 3G handsets) have been ongoing for atleast 6 months now. The problem is that there is not too much *better* (except for a pager, which has it's own set of problems).
participants (4)
-
Alastair Johnson -
Arjuna Christensen -
Mark Derricutt -
Philip D'Ath