[mobile-broadband-provider-info] us: add T-Mobile voicemail number

[Dan Williams <dcbw src gnome org>]

commit fc3119575131557b0c95aaf098d90fcfa858fedb
Author: Dan Williams <dcbw redhat com>
Date:   Sat Dec 31 10:40:42 2011 -0600

    us: add T-Mobile voicemail number

 serviceproviders.xml |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/serviceproviders.xml b/serviceproviders.xml
index 8fd9aa4..bc5dcb0 100644
--- a/serviceproviders.xml
+++ b/serviceproviders.xml
@@ -9774,6 +9774,7 @@ conceived.
 			<network-id mcc="310" mnc="660"/>
 			<network-id mcc="310" mnc="800"/>
 
+			<voicemail>123</voicemail>
 			<apn value="epc.tmobile.com">
 				<plan type="postpaid"/>
 				<usage type="internet"/>