ServiceProviderIssues

Version 11 (Adrian Georgescu, 07/06/2013 10:05 am)

1 1 Adrian Georgescu
h1. Interoperability Issues
2 1 Adrian Georgescu
3 6 Adrian Georgescu
Technical description of the reason for some failures are listed [[MostEncounteredProblems|here]]
4 6 Adrian Georgescu
5 1 Adrian Georgescu
h2.  budgetvoip.com
6 1 Adrian Georgescu
7 9 Adrian Georgescu
Through trial and error someone was able to get calls working by setting sRTP encryption to *disabled*. The default is set to *optional*, which resulted in:
8 1 Adrian Georgescu
9 4 Adrian Georgescu
<pre>
10 4 Adrian Georgescu
SIP/2.0 488 Not acceptable here
11 4 Adrian Georgescu
</pre>
12 2 Adrian Georgescu
13 3 Adrian Georgescu
h2. 1&1
14 2 Adrian Georgescu
15 8 Adrian Georgescu
This provider requires a public IP address in the Contact header. This is plain wrong as explained [[MostEncounteredProblems#SIP-Provider-requires-STUN|here]]. Blink does not work for this reason on 1&1 network.
16 3 Adrian Georgescu
17 3 Adrian Georgescu
h2. Mitel PBX
18 3 Adrian Georgescu
19 11 Adrian Georgescu
There are reports that Blink does work with Mitel equipment. We had not find such hardware to test with but rumor has it the reason is the fact that Mitel sends INVITE with no SDP considering everything is a audio call. Blink as a multimedia client needs to know what type of media is proposed in order to start a session. We did a synthetic test and hack to handle this in Blink, but nobody could confirm it works.